Preheat oven to 350°F (180 C)
Add all dough ingredients to blender, except for the baking powder, blend well until you have a smooth dough
Add the baking powder and blend just enough to mix the powder in the dough
Grease baking pan with butter
Add 1/2 of of the dough to pan
Add 1/2 of filling ingredients on top of dough
Cover with what's left of the dough
Spread what's left of the filling ingredients on top.
Bake for 30 to 40 minutes and serve!