Then add the lemon juice, seasoning, and the chopped whites of the eggs.

If a very thick sauce is required, take 1 oz. of flour. Cream may be added if desired.

[Brown Sauce.]

Method.—Put the butter into a stewpan and fry the vegetables in it.

Then mix in the flour and fry that.

Add the stock; stir and cook well.

Squeeze in the lemon juice, and add the seasoning.

Strain through a tammy-cloth or fine strainer.

[Genoise Sauce.]