Plum Torte - cooking recipe

Ingredients

1/4 c. unsalted butter
3/4 c. sugar
2 ripe medium bananas, broken into chunks
1 c. unbleached flour, sifted
1 tsp. baking powder
1/2 c. egg substitute or 2 whole eggs
12 ripe prune plums, halved and pitted
1/2 lemon
1 tsp. cinnamon or to taste
2 tsp. sugar or to taste

Preparation

Note:
Blueberries, sliced peeled peaches, apples or combinations may be used on top.