Preheat your oven to 350°F (175°C) and line an 8×8-inch baking dish with parchment paper.

In a bowl, mix cherries with 1/2 cup granulated sugar and let sit while preparing the crust.

In another bowl, combine flour, oats, brown sugar, and baking powder. Add melted butter and mix until crumbly.

Press half of the oat mixture into the prepared dish. Layer with cherries and top with the remaining crumble mixture.

Bake for 30-35 minutes or until golden brown. Allow to cool completely before slicing.