Key Stage 3 design and technology · Cooking and nutrition

KS3 design and technology: kitchen skills and cooking techniques

In Years 7 to 9, pupils become competent in a range of cooking techniques, which means more than following a recipe. They learn to prepare ingredients properly, use utensils and electrical equipment safely, apply heat in different ways, judge seasoning by taste, texture and smell, and adapt recipes of their own. These skills let a young person cook confidently with whatever is in the kitchen.

Kitchen skills and techniques, explained

The curriculum lists several techniques as examples, and schools decide how to cover them. Selecting and preparing ingredients comes first: choosing fresh, ripe produce, washing it, and cutting it consistently, because even pieces cook at the same speed. Pupils practise the bridge hold and the claw grip, which protect the fingers when slicing and dicing, and learn that a sharp knife is safer than a blunt one, since it needs less force and slips less. They also weigh and measure accurately, peel, grate, mix, knead and shape.

Utensils and electrical equipment are taught with safety first. Pupils use scales, measuring jugs, peelers, graters, thermometer probes and, as they gain confidence, hand blenders, food processors and mixers. The rules are consistent: switch off and unplug before changing a blade or cleaning, keep cables and water apart, and never put fingers near moving parts. Understanding which tool suits which job, and why, is part of the learning.

Applying heat in different ways is the largest part. Boiling, simmering and steaming use hot water or steam. Frying and stir-frying use hot oil in a pan, grilling uses radiant heat from above, and baking and roasting use hot air in an oven. Pupils learn the science behind this: conduction through the pan, convection in water and oven air, and radiation under a grill. Each method gives a different result. Simmering, with small bubbles just below a full boil, keeps delicate food intact, while a hot pan browns the surface and develops flavour. Pupils also learn that overcrowding a pan lowers its temperature, so food steams instead of frying.

The final part is developing judgement. Pupils use their senses of taste, texture and smell to decide how to season a dish and combine ingredients. They learn the basic tastes (sweet, salty, sour, bitter and savoury or umami) and how a pinch of salt, a squeeze of lemon or a spoonful of sugar can balance a dish. This leads to adapting and using their own recipes: changing the vegetables, the spices or the cooking method, and recording the changes and the results.

Words your child will hear

Bridge hold and claw grip: Two ways of holding food steady while cutting, which keep fingertips away from the blade.
Simmer: To cook in liquid just below boiling point, with only small bubbles breaking the surface.
Sauté: To fry food quickly in a little oil over a fairly high heat, moving it often.
Seasoning: Salt, pepper, herbs, spices or acid added to improve the flavour of a dish.
Reduce: To simmer a liquid without a lid so that water evaporates, the liquid thickens and the flavour becomes stronger.
Conduction: Heat passing through a solid, such as from a hob ring through a pan to the food.
Mise en place: A French phrase for having ingredients prepared and equipment ready before cooking starts.

What the National Curriculum says

In Key Stage 3, pupils should be taught to:

Become competent in a range of cooking techniques [for example, selecting and preparing ingredients; using utensils and electrical equipment; applying heat in different ways; using awareness of taste, texture and smell to decide how to season dishes and combine ingredients; adapting and using their own recipes]
Cook a repertoire of predominantly savoury dishes so that they are able to feed themselves and others a healthy and varied diet

Objectives from the National Curriculum in England, © Crown copyright, used under the Open Government Licence v3.0.

Try it: making and seasoning a tomato sauce

A pupil makes a simple tomato sauce for pasta from an onion, a clove of garlic, a tin of chopped tomatoes and some herbs. How do they use technique and taste to get it right, then record an adaptation?

Prepare. Peel the onion, cut it in half and dice it into even pieces using the claw grip. Peel and crush the garlic. Have the tin opened, a wooden spoon and a lid ready.
Soften, don’t brown. Heat a little oil gently in a saucepan and add the onion. Cook over a medium heat for about 5 to 8 minutes until soft and see-through. Add the garlic for the last 30 seconds, because garlic burns fast and turns bitter.
Add and simmer. Tip in the tomatoes and a pinch of dried oregano. Bring to the boil, then turn the heat down to a simmer and cook for 15 to 20 minutes, stirring now and then, until thicker. Using a lid slightly off the pan stops it spitting.
Taste with a clean spoon and decide. If it is sharp, a pinch of sugar or a grated carrot cooked with the onion softens it. If it tastes flat, add salt a little at a time, tasting in between. Torn fresh basil stirred in at the end adds a fresh smell and flavour.
Adapt and record. For a smooth sauce, switch off the heat and let it cool slightly. Use a hand blender in a deep pan or jug, taking care that the blade stays under the surface. Unplug before cleaning. Write down what was added and how it changed the taste.

A strong response shows the sequence (prepare, soften, simmer, taste, adjust), explains why (garlic added late, simmer instead of boil, season gradually) and records one change. For example: “Adding grated carrot made the sauce sweeter, so I needed less sugar.”

Common mistakes and how to help

Boiling and simmering are the same thing

Both involve bubbling water, and recipes often use the words loosely.

What helps: A boil has large, vigorous bubbles. A simmer has small, gentle ones. Simmering suits sauces, soups and stews, because a hard boil can break up food and make meat tough. Compare the two in a pan of water with an adult present.

A blunt knife is safer than a sharp one

A sharp blade looks more dangerous, so children avoid it or prefer a blunt one.

What helps: A blunt knife needs more force and slips on skins, such as tomatoes and onions. Pupils should use a sharp, suitable knife, keep it clean, cut on a stable board and carry it pointing down, with an adult nearby.

A hotter pan always cooks food faster and better

Turning up the heat seems to save time.

What helps: Too much heat burns the outside while the middle stays raw, and burnt garlic or spices taste bitter. Match the heat to the job: medium to soften onions, high only for a short time to brown or stir-fry.

Seasoning just means adding salt at the end

Salt is the seasoning most people think of, so it is used last and often too much.

What helps: Season in stages and taste in between. Acid such as lemon or vinegar, herbs, spices, pepper and a little sweetness can lift a dish without more salt.

How to help at home

Knife practice with an adult. Choose a sharp, medium-sized knife and a stable board with a damp cloth underneath. Show the claw grip and let your child dice an onion or slice carrots while you stay close. Praise even pieces, not speed.
Taste test. Make a plain tomato soup or pasta sauce, then divide it into three small bowls. Add a pinch of salt to one, a little lemon juice to another and a tiny pinch of sugar to the third, and ask your child to describe what each did to the taste.
Same food, different heat. Cook a vegetable such as broccoli, carrots or courgette three ways over a few meals: boiled, steamed and roasted. Compare the colour, texture and taste, and talk about which cooking method suits which food and why.
Write your own recipe. After a favourite meal, ask your child to write it up in their own words, with quantities, order of steps and one change they would try next time. Cook from their version the following week and talk about whether it worked.
Hob and oven safety. Agree the rules: long hair tied back, pan handles turned inwards, oven gloves kept dry, and an adult in the kitchen whenever the hob or oven is on while your child is learning.

Builds on

Key Stage 2: Healthy and varied diet
Key Stage 2: Cooking savoury dishes
Key Stage 2: Seasonal food
Key Stage 2: Grown, reared, caught, processed