3/4 cup butter
1/2 cup firmly packed brown sugar (I use only 1/4 cup)
1/2 teaspoon ground cinnamon
1 1/2 cups Plums halves ,pitted
1/2 cup granulated sugar
1 1/2 cups sifted all-purpose flour
2 teaspoons baking powder
1/2 teaspoon salt
1/2 cup milk
Melt 1/4 of the butter in square pan (9x9x2 inches). Sprinkle with brown sugar and cinnamon. Arrange plum halves rounded side down, in pan. Cream 1/2 cup butter with granulated sugar until light. Beat in egg. Sift dry ingredients and add alternately with milk, beating until smooth. Spread on top of plums. (mixture is thick now and I drop by tablespoon onto the plums, no need to spread; in oven it all evens out) Bake in preheated moderate oven (375° F.) for about 30 minutes. Let stand for 10 minutes; turn out on serving plate and serve with whipping cream, if desired. Makes 6 large or 9 small servings. Enjoy! At our house this cake never gets to be turn out on serving platter; we bake, cool and eat it!
I've also used canned apricots or apple wedges and it's just as good.