25g butter and melt in a pan, stir constantly with wooden spoon.
Stir in 30ml of flour and cook for a minute.
Add 150mls of milk and stir until sauce thickens and is smooth.
Stir in 100g grated cheddar cheese, pepper to taste.
Remove from heat and allow to cool. I stirred in 30g grated Parmesan cheese too!
When sauce cool add 4 egg yolks.
Whisk 4 egg whites until stiff then fold into cooled sauce with a figure of eight pattern with a metal spoon. Spoon the lightly stirred mixture into a prepared eggs dish and bake for 32 minutes at 190 C/ 375 F or Gas Mark 5.
Serve with salad.
Done – Yum!