Ingredients:
2 eggs
2 tbsp sugar
2 tbsp flour
1/4 liter milk
Vanilla extract
20 g butter
Whip the eggs with sugar, add flour, and couple of spoonfuls of milk. Stir into smooth mixture. Let milk start to boil. While stirring, add the egg mixture and keep stirring until it thickens. Add butter and taste it with vanilla extract. Let it cool.