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Four bowls of gluten-free apple crisp.

Gluten-Free Apple Crisp

This easy gluten-free apple crisp recipe is made with sliced apples and a crunchy and sweet gluten-free oat topping.

Course Dessert
Prep Time 20 minutes
Cook Time 45 minutes
Total Time 1 hour 5 minutes
Servings 8 servings
Calories 250 kcal

Ingredients

Topping

  • 1 cup gluten-free old-fashioned whole oats, see note 1 (3 ½ ounces; 100 grams)
  • ¾ cup gluten-free flour (4 ounces; 115 grams)
  • ½ cup packed light or dark brown sugar (3 ¾ ounces; 110 grams)
  • 1 teaspoon ground cinnamon
  • ¼ teaspoon salt
  • ½ cup butter, melted (1 stick; 4 ounces; 115g)

Filling

  • 5 pounds apples, cut into thick slices (about 7 to 8 large apples, 10 cups sliced.)
  • Zest and juice of one lemon
  • ¼ cup packed light or dark brown sugar, see note
  • ¼ cup gluten-free flour
  • 1 teaspoon ground cinnamon
  • ¼ teaspoon salt

Instructions

  1. Preheat oven to 350℉ (177 ℃). Lightly grease a 9x13-inch baking pan with softened butter or nonstick cooking spray.

Prepare the Topping

  1. Whisk together the gluten-free oats, gluten-free flour, brown sugar, cinnamon, and salt. Stir in melted butter with a wooden spoon until crumbly. Set aside.

Prepare the Filling

  1. Stir together the apple slices, lemon zest and juice in a large bowl. Add the brown sugar, gluten-free flour, cinnamon, and salt. Stir until all the apple slices are evenly coated.

  2. Spread the apples into an even layer in the prepared pan. Sprinkle the topping evenly over the apple slices.

  3. Bake until the apples are soft and the filling bubbles, about 45 minutes. Remove the pan from the oven. Allow apple crisp to cool for about 15 minutes before serving.

  4. Store leftover apple crisp covered in the refrigerator for up to four days. Reheat before serving in the microwave on low heat for about 30 seconds.

Recipe Notes

Note 1: As always, be sure to use gluten-free oats. If you avoid oats, replace them with quinoa flakes.