1 bag oatmeal cookie mix12 tablespoons salted butter 1 cup old-fashioned oats1 bag frozen blueberries2 large green Granny Smith apples 1/4 cup light brown sugar1 tablespoon ground cinnamon
Preheat the oven to 350℉. Cover a cookie sheet with parchment paper and set aside for later. Spray a 9×13 baking dish with cooking spray, set aside for later.