Gluten-Free Apple Crisp

Ingredients (11)

• 1 cup gluten-free rolled oats
• 2/3 cup all-purpose gluten-free flour
• 2/3 cup firmly packed light brown sugar, plus 3 tablespoons for filling
• 6 tablespoons chilled unsalted butter, cubed
• 1/4 teaspoon salt
• 2 pounds baking apples, about 5 to 6, peeled and thinly sliced
• 1 teaspoon cinnamon
• 3 tablespoons maple syrup
• 2 tablespoons fresh lemon juice, from about half of a lemon
• 1 teaspoon cornstarch
• Cooking spray or butter, for greasing