One-pot tomato risotto
Risotto rice, onion, tomato paste, stock and hard cheese make a creamy one-pot rice dish in about 20 minutes – entirely without mushrooms. The secret is frequent stirring and adding the stock in portions. Plan enough water: rice absorbs a lot of liquid, and you need a reserve.
- Preparation 5 minutes, cooking 18–22 minutes with lots of stirring

Explained simply
Risotto is a creamy rice dish from Italy. For it you need special rice with round grains, an onion, tomato paste, stock and some cheese. This recipe does not need mushrooms – we leave them out completely.
The secret is stirring. You do not pour the stock into the pot all at once, but in three portions. Whenever the rice has almost soaked up the liquid, the next portion goes in. While you stir, the grains rub against each other and it gets lovely and creamy.
Risotto takes about 20 minutes and a small flame. That is a good job for a group: everyone gets a turn at stirring. Take enough water with you, because the rice drinks a lot of it.
How it works
Risotto rice such as Arborio or Carnaroli has round, plump grains with a lot of starch on the surface. When you stir, the grains rub against each other and this starch comes off. It binds the stock into a creamy sauce – without any cream.
At the start you toast the rice briefly in oil. This coats the grains in fat all round and makes them glassy at the edge. That way they keep a slight bite in the middle later and do not fall apart into mush.
Because the stock goes in portions, there is only ever a little liquid in the pot. That makes the grains rub against each other more. At the same time the bottom of the pot is only thinly covered – which is why the flame must be small and you must stir along the bottom often.
Water, fuel and altitude
Rice absorbs a lot of liquid while cooking. Plan about 350 ml per person for the stock plus a small reserve in case the rice is still hard. On top of that comes water for drinking and for soaking the pot. If you have only a little water, you are better off cooking instant mash or couscous.
A stove that can be turned down low and a windscreen make risotto much easier. Otherwise the wind blows the flame back and forth, the bottom of the pot heats unevenly and the rice burns in one spot.
At high altitude water boils at a lower temperature. That is why it takes longer there for the rice to soften, and you need more fuel and water. The US food safety agency USDA FSIS describes this too.
Safety: what to watch out for
A stove always belongs outside – never in the tent, never in the vestibule, never in the car. Burning gas or spirit produces carbon monoxide. You cannot see or smell this gas; it makes you tired and can knock you out. On top of that, tent fabric catches fire within seconds. If it rains, cook under a tarp with open sides or wait.
The most common accidents when cooking outdoors are scalds. A narrow stove with a full pot tips over easily. Put it on firm, level ground, hold the pot by its handle while stirring and only let children near the stove together with an adult. With a scald, cool it at once with cool running water; with large wounds, burns to the face or in children call 112, in Austria also 144.
Cooked rice should not stand around lukewarm. Eat the risotto hot straight away and do not keep leftovers if you cannot cool them. Cheese contains milk, stock often celery. And once more: this recipe works without mushrooms – never gather wild mushrooms for your food outdoors.
Step by step
Set up a safe cooking spot
Put the stove outside on firm, level ground or a flat stone – well away from the tent, dry grass and leaves. A windscreen keeps the flame steady but must not enclose the stove completely. Lay everything out before you light it: pot with lid, cooking spoon, water, ingredients. Dissolve the stock cube beforehand in hot or warm water in a mug or bottle, and set up the windscreen – risotto needs a steady, small flame.
Caution: Never cook inside the tent or vestibule.
- 1
Set up a safe cooking spot
Put the stove outside on firm, level ground or a flat stone – well away from the tent, dry grass and leaves. A windscreen keeps the flame steady but must not enclose the stove completely. Lay everything out before you light it: pot with lid, cooking spoon, water, ingredients. Dissolve the stock cube beforehand in hot or warm water in a mug or bottle, and set up the windscreen – risotto needs a steady, small flame.
Never cook inside the tent or vestibule.
- 2
Sweat the onion
Oil into the pot, medium flame, and fry the very finely diced onion for 2 to 3 minutes until soft and translucent.
- 3
Toast the rice briefly
Add the rice and stir for 1 to 2 minutes until the grains are coated in oil all over and turn slightly translucent at the edges. Then stir in the tomato paste and toast it only briefly.
- 4
Add the stock in portions
Pour in about a third of the stock, low flame. Stir often, especially on the bottom. As soon as the liquid is almost absorbed, add the next portion. Whoever gets tired passes the spoon on.
Careful: it hisses and steams when you pour.
- 5
Simmer and stir
In total the rice simmers for about 16 to 20 minutes. If the pot is dry but the rice is still hard, take some of the water reserve. Add herbs such as oregano now.
- 6
Bite test
Taste a few grains with a clean spoon: soft outside, with just a tiny bite inside – then it is done. The risotto should flow creamily, not be stiff like rice pudding. If necessary stir in another splash of water.
- 7
Stir in cheese and let it rest
Turn off the stove. Stir in the grated cheese, put the lid on and let it rest for 2 minutes. Season with pepper – stock and cheese usually provide enough salt.
- 8
Eat hot, soak the pot
Fill the bowls with risotto at once and eat it hot. Soak the pot straight away with a little water. Packaging goes into the rubbish bag; scatter washing water well away from water.
Common mistakes
- Tipping in all the stock at once – less creamy
- Too high a flame – the rice burns on the bottom
- Planning too little water
- Long-grain rice instead of risotto rice – it will not get creamy
- Leaving risotto lukewarm for hours
- Adding salt before cheese and stock are in
Quick view
Materials
Risotto rice (short-grain, e.g. Arborio)
Per person 80–100 g
Do not leave cooked rice lukewarm – eat it straight away.
Onion
Per person half an onion, very finely diced
Keeps for several days without a fridge if it stays dry and airy.
Cooking oil (rapeseed or olive) in a leak-proof bottle
Per person 1 tablespoon (olive oil works well)
Hot oil can spit and catch fire – never pour water on burning fat; put the lid on and turn the stove off.
Tomato paste in a tube
Per person 1–2 tablespoons
Keep an opened tube cool and use it up within a few days; keep the cap clean.
Stock cube or vegetable stock powder
Per person half a cube, dissolved in water
Often contains celery, sometimes gluten or milk – read the ingredients.
Very salty: hardly any extra salt needed afterwards.
Clean drinking or treated water
Per person about 350 ml for the stock plus 100 ml in reserve
Treat water from streams or lakes first – also for rinsing vegetables and beans.
Carry enough for cooking, drinking and washing up.
Hard cheese in a piece (e.g. mountain cheese, Parmesan)
Per person 20–30 g, grated or finely cut
Keeps better without a fridge than soft cheese, but not forever – carry it in the shade and eat it in the first days in hot weather.
Contains milk.
Spices in small tubs (paprika, cumin, chilli, herbs)
Dried oregano or basil, pepper
Ready-made spice mixes can contain celery or mustard – read the ingredients.
Ground spices burn very quickly in hot fat and turn bitter.
Stove
Ideally a stove that simmers well on a low setting
Never operate inside a tent, shelter or enclosed room – carbon monoxide and fire risk.
Stove fuel (canister, liquid fuel, alcohol)
For about 20 minutes of cooking
Store fuels apart from food and in original containers or bottles intended for them.
Store cool, well ventilated and out of children's reach.
Metal pot (stainless steel, aluminium, titanium)
With a thick base if possible
Hot – scalding risk.
Long cooking spoon (wood or heat-resistant plastic)
A long handle keeps your hand out of the hot steam.
Bowl or large mug with spoon
A mug for the hot stock
Children eat from their own bowl – not straight from the hot pot.
Suitable for
- Relaxed evenings on the campsite
- Groups where several people take turns stirring
- Vegetarian cooking outdoors
Not suitable for
- Little water or scarce fuel
- High altitude – rice softens only slowly
- Strong wind without a windscreen
- Cooking in a tent or vestibule – never
Prerequisites
- Some stove experience – the flame has to be turned down low
- A permitted, safe cooking spot outside
- Enough clean water and fuel
Safety
- Cheese contains milk, stock cubes often celery and sometimes gluten. Ask beforehand whether anyone has an allergy. This recipe deliberately contains no mushrooms – never gather wild mushrooms for your food outdoors.
- Cooked rice is one of the foods that should not stand around lukewarm. Eat risotto hot straight away and do not keep leftovers if you cannot cool them.
- Eat cooked food hot straight away. Do not leave leftovers without cooling for more than two hours – and never overnight in the lukewarm pot. Anything left over is heated until it is steaming hot all through before eating, or it is thrown away. Pack food and rubbish animal-proof at night.
- Only use clean or treated water. At a campfire the fire rules apply: only where it is allowed, never with wildfire danger, pot stable on a pot support, water ready to put the fire out and the fire extinguished completely at the end. Take packaging and food scraps back with you, scatter washing water well away from streams and lakes.
How it works
Risotto rice has round grains with a lot of starch on the surface. When stirred, the grains rub against each other, the starch comes off and binds the stock into a creamy sauce. If you add the stock in portions, only a little liquid is ever in the pot, and the grains rub against each other more. Toasted briefly, they keep a slight bite. Because the liquid is almost completely absorbed, the flame must be low and you must stir often, otherwise the rice burns.
Advantages
- One pot, a proper dinner
- Ingredients keep without a fridge
- Vegetarian, easy to make vegan
- A nice shared task while stirring
Disadvantages
- Needs a lot of stirring and attention
- More fuel and water than instant meals
- Burns easily
- Much slower at high altitude
Deep knowledge
Background
Risotto comes from northern Italy. Typical varieties such as Arborio or Carnaroli have round, starch-rich grains that give a creamy binding when stirred. Outdoors a stove that can be turned down low helps; a windscreen keeps the flame steady.
At high altitude water boils at a lower temperature, so cooking times get longer, as the US food safety agency USDA FSIS describes. Like all cooked food according to the WHO's Five Keys, cooked rice should not stand without cooling for more than two hours.
Variants
- Children's risotto
- With extra cheese and a small can of sweetcorn or peas cooked along in the last 3 minutes. Children can help stir together with an adult – with a long spoon and at a distance from the steam.
- Vegan
- Use vegan vegetable stock; instead of cheese stir in a spoonful of olive oil and nutritional yeast at the end. Small pieces of sun-dried tomato add extra flavour.
- Saving fuel
- After about 10 minutes of cooking add the rest of the stock at once, bring briefly to the boil, turn off the stove and let the pot stand with its lid on, well wrapped, for 10 minutes. The result is less creamy but saves fuel.
Common mistakes
- Tipping in all the stock at once – less creamy
- Too high a flame – the rice burns on the bottom
- Planning too little water
- Long-grain rice instead of risotto rice – it will not get creamy
- Leaving risotto lukewarm for hours
- Adding salt before cheese and stock are in
Limits and risks
- Cooking time and amount of water depend on rice variety, stove and altitude
- Deliberately without mushrooms – do not gather wild mushrooms outdoors
- No figure for how long leftovers keep outdoors – do not keep them
Material alternatives
Derived from material properties: a substitute must have all relevant properties. Observe the notes on the substitute.
- Stove fuel (canister, liquid fuel, alcohol)
- Dry firewood (Collect only where permitted.), Tinder (Carry in waterproof packaging.), Char cloth (charred cotton) (Store dry in a tin.), Finest-grade steel wool (Store separately from batteries – fire risk.), Fatwood (resin-rich wood) (Collect only dead wood where permitted.), Petroleum jelly cotton balls (Use only pure cotton.), Cooking oil or cooking fat (tallow, lard) (Never put out burning fat with water – cover it with a lid to smother it.), Tree resin (spruce, pine) (Resin is flammable and sticks to the skin when hot – melt it only slowly over low heat.), Birch bark (from dead, fallen wood) (Never peel from living trees.)
- Metal pot (stainless steel, aluminium, titanium)
- Single-wall stainless steel bottle (Heat only single-wall bottles without paint/plastic; remove the lid before heating.)
Results come exclusively from structured entries. No improvised instructions are generated.
Sources (6)
- World Health Organization (WHO) (2006): Five Keys to Safer Food Manual · Do not leave cooked food at room temperature for more than two hours; reheat leftovers thoroughly; use safe water
- United States Department of Agriculture – Food Safety and Inspection Service (USDA FSIS): High Altitude Cooking and Food Safety · At altitude water boils at a lower temperature and cooking times get longer
- European Parliament and Council of the European Union (2011): Regulation (EU) No 1169/2011 on the provision of food information to consumers · Milk, celery and cereals containing gluten as allergens that must be declared
- Centers for Disease Control and Prevention: Carbon Monoxide Poisoning – Prevention guidance · Never use stoves or other fuel-burning devices inside tents or closed spaces – carbon monoxide
- European Resuscitation Council – Resuscitation (journal) (2021): European Resuscitation Council Guidelines 2021: First Aid · Cool burns and scalds at once with cool running water; call emergency services for severe burns
- Leave No Trace Center for Outdoor Ethics: The Seven Principles of Leave No Trace (Principle 5: Minimize Campfire Impacts) · Pack out rubbish, scatter washing water away from water, keep fires small or use a stove























