Apple Crumble Overnight Oats

Name: Apple Crumble Overnight Oats
Ingredients: 1 1/2 cups chopped unpeeled Gala apple; 1/3 cup water; 1 1/2 tablespoons pure maple syrup , divided; 1 1/2 teaspoons ground cinnamon , divided; 1/4 teaspoon salt; 1 1/4 cups reduced-fat milk; 1 cup old-fashioned rolled oats; 1/4 cup creamy cashew butter; 1 tablespoon chia seeds; 2 teaspoons vanilla extract; 2 tablespoons all-purpose flour; 2 tablespoons old-fashioned rolled oats; 1 tablespoon dark brown sugar; 1 1/2 tablespoons butter , melted; 1/2 teaspoon ground cinnamon; 1/8 teaspoon salt