Ingredients Original recipe yields 12 servings Ingredient Checklist cooking spray Crumble and Crust: 1 ½ cups all-purpose flour ½ cup white sugar ½ teaspoon baking powder 1 pinch salt 10 tablespoons cold unsalted butter, cut into cubes 1 large egg yolk 1 tablespoon cold water Peach Filling: 2 cups fresh peach slices, or more to taste ½ cup white sugar 2 tablespoons all-purpose flour 1 tablespoon lemon juice 1 teaspoon vanilla extract ¼ teaspoon ground cinnamon ¼ teaspoon ground nutmeg Directions Instructions Checklist Step 1 Preheat the oven to 375 degrees F (190 degrees C). Coat an 8×8-inch baking pan with cooking spray. Step 2 Whisk flour, sugar, baking powder, and salt together in a bowl. Next, cut in the cold butter using 2 forks or a pastry cutter then slowly mix in the egg yolk and cold water. Don’t worry if the dough seems really crumbly; it should be! Step 3 Press 1/2 of the crumble mixture into the prepared pan to make the crust. Save the rest for the top of the bars. Step 4 Stir together peach slices, sugar, flour, lemon juice, vanilla extract, cinnamon, and nutmeg until combined. Evenly add peach filling to the top of the crust. Step 5 Sprinkle the remaining crumble over the peach filling. Step 6 Bake in the preheated oven until golden brown and set, 30 to 38 minutes. Cool bars to room temperature, then cut and serve.