Air Fryer Blueberry Apple Crumble: The 20-Minute Dessert That Saves Your Weeknights

Name: Air Fryer Blueberry Apple Crumble: The 20-Minute Dessert That Saves Your Weeknights
Cuisine: American
Ingredients: Fruit filling:; 2 cups fresh blueberries; 2 medium apples, peeled and diced (Granny Smith or Honeycrisp); 2 tablespoons granulated sugar; 1 teaspoon lemon zest; 1 teaspoon cornstarch; A squeeze of fresh lemon juice; Crumble topping:; 3/4 cup old-fashioned oats; 1/2 cup flour; 1/3 cup brown sugar; 1/2 teaspoon cinnamon; 4 tablespoons cold butter, cubed; A pinch of salt