415C Vegetable Cookery 2 — Questions and Answers
Question 1: What is the difference between sweating and sautéing vegetables?
- There is no difference
- Sweating uses low heat with fat to soften vegetables without browning; sautéing uses high heat to brown and caramelize the vegetables (Correct answer)
- Sweating uses water; sautéing uses oil
- Sweating is for root vegetables only; sautéing is for leafy greens only
Correct answer: Sweating uses low heat with fat to soften vegetables without browning; sautéing uses high heat to brown and caramelize the vegetables
Sweating (suer) cooks vegetables in fat over low to moderate heat to soften them and release moisture without developing colour. Sautéing (sauter) uses high heat with fat to quickly cook and brown vegetables, developing caramelization and Maillard reaction flavours.
Question 2: How does acidic cooking liquid (vinegar, lemon juice) affect the colour of red vegetables like red cabbage?
- It turns them brown
- It brightens and stabilizes the red/purple colour (Correct answer)
- It turns them green
- It has no effect on colour
Correct answer: It brightens and stabilizes the red/purple colour
Red and purple vegetables contain anthocyanin pigments that are pH-sensitive. Acidic environments (vinegar, lemon juice, wine) stabilize these pigments and produce bright red colours. Alkaline environments turn them blue or green. This is why red cabbage recipes traditionally include vinegar or apples.
Question 3: What is a tourné cut and how many sides should it have?
- A thin diagonal slice with 2 sides
- A barrel or football-shaped cut with 7 sides, approximately 5 cm (2 inches) long (Correct answer)
- A cube cut with 6 sides
- A wedge cut with 3 sides
Correct answer: A barrel or football-shaped cut with 7 sides, approximately 5 cm (2 inches) long
A tourné is a classical French knife cut that shapes vegetables into barrel or football-shaped pieces with 7 flat sides, approximately 5 cm (2 inches) long. It is one of the most challenging knife cuts, requiring a tourné (bird's beak) knife and significant practice to master.
Question 4: What is the best cooking method for asparagus to maintain its colour, texture, and nutrients?
- Deep frying at 190°C
- Blanching or steaming briefly, then shocking in ice water if serving cold, or finishing with a quick sauté (Correct answer)
- Boiling for 20 minutes in salted water
- Baking at 230°C for 30 minutes
Correct answer: Blanching or steaming briefly, then shocking in ice water if serving cold, or finishing with a quick sauté
Asparagus is best cooked briefly using blanching, steaming, or grilling to maintain its vibrant green colour, crisp-tender texture, and nutritional value. If serving cold, shocking in ice water immediately after blanching locks in the colour. A quick sauté or grill adds flavour while preserving texture.
Question 5: What is concassé as a vegetable preparation?
- A finely minced herb mixture
- Tomatoes that have been peeled, seeded, and roughly chopped (Correct answer)
- Any vegetable puréed until smooth
- Vegetables cut into rings
Correct answer: Tomatoes that have been peeled, seeded, and roughly chopped
Concassé (from the French concasser, 'to crush') specifically refers to tomatoes that have been blanched, peeled, cut in half, seeded, and then roughly chopped. Tomato concassé is used as a base for sauces, a garnish for soups and proteins, and as an ingredient in many classical preparations.
Question 6: When roasting vegetables, why is it important not to overcrowd the pan?
- To prevent them from burning
- To allow moisture to escape so the vegetables caramelize rather than steam (Correct answer)
- To make them cook faster
- To prevent the pan from warping
Correct answer: To allow moisture to escape so the vegetables caramelize rather than steam
Overcrowding traps the moisture released by the vegetables, creating steam that prevents the high surface temperatures needed for caramelization and browning. Vegetables should be arranged in a single layer with space between them, allowing moisture to evaporate quickly and enabling the Maillard reaction and caramelization.
415C Vegetable Cookery 2
What is the difference between sweating and sautéing vegetables?