60 g of butter or margarine
1 egg
1/2 lemon
40 g of flour
1/2 liter of water in which asparagus or fish broth were cooked
salt
pepper
60 g of butter or margarine
1 egg
1/2 lemon
40 g of flour
1/2 liter of water in which asparagus or fish broth were cooked
salt
pepper
Melt half the butter in a saucepan, whisk together the flour and remove from heat
Whisk constantly while adding the cold liquid
Add the egg, salt, and pepper to the mixture
Bring the mixture to a boil over low heat, whisking constantly
Remove from heat and stir in the remaining butter, lemon juice, and any additional seasonings
It is essential that you remove the sauce from the heat as soon as it begins to boil.