In these easy bar cookies, blueberries top a pastry crust and get sprinkled with a cinnamon crumble before baking. You can use any berries you like. February 11, 2021February 11, 2021 In these easy bar cookies, blueberries top a pastry crust and get sprinkled with a cinnamon crumble before baking. You can use any berries you like.