Name: Raspberry Crumble Bars
Prep time: 1 h
Cook time: 30 min
Total time: 1 h 30 min
Yield: 12-18 bars
Ingredients: 2 12-ounce bags of frozen raspberries (see notes); 1/2 cup granulated sugar (more depending on tartness of your berries); 2 tablespoons flour; 1 tablespoon cornstarch; juice of one lemon; 3 cups rolled oats; 3 cups flour; 2 cups brown sugar (loosely packed); 1 teaspoon baking powder; 1 1/2 cups melted butter (I prefer salted); 1/2 teaspoon salt