Dylan Dreyer's Apple Crisp recipe

Ingredients

• 8 apples, peeled and sliced (4 Granny Smiths and 4 others)
• 1 cup sugar
• 1 tablespoon all-purpose flour
• 1 teaspoon cinnamon
• 1/2 cup water
• 1 cup quick-cooking oats
• 1 cup all-purpose flour
• 1 cup packed brown sugar
• 1/4 teaspoon baking powder
• 1/4 teaspoon baking soda
• 1/2 cup butter, melted