Final answer:
The student's question is about matching four classic French mother sauces with their correct ingredients: Béchamel sauce (white roux + milk), Velouté sauce (blond roux + stock), Hollandaise sauce (melted butter + egg yolks), and Espagnole sauce (brown roux + stock).
Step-by-step explanation:
The student's question relates to matching classic French mother sauces with their respective ingredients. Here is the correct pairing:
- Béchamel sauce is made with white roux (a mixture of flour and butter) and milk.
- Velouté sauce is made with a blond roux and stock, usually chicken, veal, or fish.
- Hollandaise sauce is composed of melted butter and egg yolks, emulsified with a bit of lemon juice or vinegar.
- Espagnole sauce, also known as brown sauce, is made with a brown roux (cooked longer than white roux, until it develops a light brown color) and stock.