Fresh Farmhouse Cherry Kuchen

2 cups + 2 tablespoons sifted all-purpose flour
1 teaspoon baking powder
1/2 teaspoon baking powder
3/4 cup butter cut in small pieces
1/2 cup sugar
1 egg
2 pounds cherries
1 teaspoon fresh grated lemon peel
1 teaspoon cinnamon
6 tablespoons sugar
Whipped cream, if desired