Prepare the apples by cutting them and frying them with butter. Cool down. Boil the egg, peel the shell, chop finely. Blanch the egg with butter. Beat eggs with sugar until fluffy foam and increase in volume by 2-3 times. Add flour. Mix well.
Pour prepared apples and batter into a baking dish. Bake at 70 degrees in the oven for 40 minutes.
For the sauce: squeeze the juice from the apples. Punch the apple mass with a blender. Combine all ingredients, including juice, in a saucepan, bring to a boil and cook after boiling for 5 minutes.