Apple Crumble (Apple Crisp)

Bahan-bahan (8 porsi)

• 8 apples (medium, or 10 small apples, peeled, cored and sliced)
• 1/4 cup white granulated sugar
• 2 tablespoons light brown sugar (packed)
• 1 tablespoon all-purpose flour
• 3/4 teaspoon ground cinnamon
• 1/4 cup water
• 1 1/4 cup quick-cooking oats (or rolled oats for a chewier crumb)
• 1 1/4 cup all-purpose flour
• 3/4 cup light brown sugar (packed)
• 1/4 cup white granulated sugar
• 1 teaspoon ground cinnamon
• 1/2 teaspoon salt
• 1/4 teaspoon baking powder
• 3/4 cup unsalted butter (melted)