The Best Blackberry Crisp

Preheat oven to 350 degrees F (175 degrees C). Lightly grease a 9x13-inch baking dish.

Mix peaches blackberries 1/2 cup gluten-free flour white sugar lemon juice and cinnamon together in a bowl; spread evenly into the prepared baking dish.

Stir brown sugar oats and 3/4 gluten-free flour together in a separate bowl. Cut butter into oat mixture until it resembles coarse crumbs; sprinkle evenly over berry mixture.

Bake in the preheated oven until golden brown about 45 minutes.