Preheat the oven to 350 F

In a large bowl, toss berries together, add flour and sugar give it a good toss

Transfer into a greased 8 inch square baking sheet

Crush the cereal and corn flakes into another bowl

Add melted butter

Mix well, so that all the dried ingredients get covered in butter

Cover the berries with the crumble

Bake for approximately 35 minutes or until the fruit starts to bubble on the sides

Serve with vanilla ice cream or whipped cream