...because no! You do not have to choose between pie and cake!
In a pan or skillet, melt a stick of butter.
Whisk in 1cup flour and 1cup sugar.
Add 1cup milk. Let it get hot again.
Add 1 egg if custardy pie-like texture is desired, 1tsp baking powder (or more if a cakey texture is what you're after), and whatever fruit you have lying around.
Bake at 350 (or whatever) until done.
It's different every time. Pake!