A highly rated recipe for German apple kuchen is Grandma Geldner's Apple Kuchen on Food.com. The recipe takes about 25 minutes to prepare and serves around eight to 10 people.
To make Grandma Geldner's Apple Kuchen, first sift together 1 1/4 cup flour, 1 teaspoon baking powder, 2 teaspoons sugar and 1/2 teaspoon salt. Add in 1/2 cup unsalted butter with a pastry blender until the butter is about the size of peas. Beat together an egg and 2 tablespoons milk, then add to the dry ingredients. Place the dough into a greased 9-by-13-inch pan.
Core enough baking apples, such as Granny Smith, to yield 4 to 5 cups. Cut the apples into slices, placing the slices on top of the dough in rows until the dough is covered completely. Top the apples with 2 tablespoons butter and a mixture of 3/4 cup sugar, 1 1/2 tablespoons flour and 1/2 teaspoon cinnamon. Bake the apple kuchen for 30 to 45 minutes at 350 degrees Fahrenheit. Serve the warm apple dessert with ice cream or whipped cream, if desired.
Add more apples to the recipe to complete a second row of apple topping to alter the dough-to-apple ratio. Also, different fruits, such as pears, blueberries or peaches, may be used to change the flavor of the kuchen.