1 stick(4 oz, 125 g) margarine or butter
2/3 c sugar(brown or white)
2-3 eggs
1/2 tsp flavoring(vanilla, lemon, cinnamon , etc.) dash salt
1 1/2 c flour
2 tsp baking powder
1- tbsp milk, orange juice or yogurt)
fruit( about 1 1/2 lb of plums, apples, cherries, apricots etc. Cream margarine with sugar.
Add eggs and beat until smooth.  
Add flavoring, flour and baking powder,
and liquid( the amount depends on
how wet the fruit is and whether you use 2 or 3 eggs).
Prepare a 9 inch springform pan by lining with waxed or
parchment paper or by greasing  and flouring it.  
Spread the rather thick dough over the bottom.  
Place fruit over it, e.g. halves of plums, apple quarters or slices.  
You can add some chopped nuts. Back at 350oF for 40-50 min.  
The dough will rise around and even over the fruit.  
Remove from oven and decorate with powdered sugar.  
Best served warm or within one day.