Bring the milk, butter and salt to the boil. Add the flour and roast (like fire mass). Let the mixture cool down a little. Squeeze the lemon. Stir the egg yolks into the mixture one by one. Add lemon and stir in.
Beat egg whites with sugar until stiff and fold in. Pour 3/4 of the mixture into 8 prepared molds (buttered and sprinkled with sugar). Bake in the oven at 190 ° C until ready (approx. 15 minutes).