Step 1: Prepare the Baking Dish: Preheat oven to 350F (175C). Grease a 9x13 inch baking dish. This prevents the cake from sticking and ensures easy removal.
Step 2: Layer the Fruit Filling: Pour the can of fruit pie filling into the prepared baking dish. Spread it evenly across the bottom. The fruit forms the moist and flavorful base of the cake.
Step 3: Sprinkle the Cake Mix: Evenly sprinkle the dry cake mix over the fruit filling. Ensure the fruit is fully covered with the cake mix. Do not prepare the cake mix according to the box instructions; use the dry mix as is.
Step 4: Drizzle with Melted Butter: Pour the melted butter evenly over the dry cake mix. Try to cover as much of the cake mix as possible to ensure even cooking and a moist topping. Optional: sprinkle with nuts and/or cinnamon/nutmeg.
Step 5: Bake to Golden Perfection: Bake in the preheated oven for 35-45 minutes, or until the top is golden brown and the fruit is bubbling around the edges. A toothpick inserted into the center should come out clean (though it may be slightly moist from the fruit).
Step 6: Cool and Serve: Remove from the oven and let it cool slightly before serving. The cake is best served warm. It can be enjoyed as is or with a scoop of vanilla ice cream or whipped cream.
Optional: For a crispier topping, use a streusel topping instead of melted butter. To make a streusel, combine cup flour, cup brown sugar, and cup cold butter, cut into pieces. Mix with a pastry blender or your fingers until crumbly, then sprinkle over the cake mix before baking.