2 tablespoons butter
2 tablespoons flour
1 teaspoon onion juice
1 cup milk or half milk, half cream
salt and white pepper to taste
a pinch of nutmeg
Melt the butter over a low flame and stir in the flour and gradually add the milk. Add the seasonings and cook over low heat stirring constantly until the flour is thoroughly cooked. A thin sauce may be made by adding a little more milk.