Ingredient:

• 4 cups sliced fresh or frozen peaches
• 2 cups fresh or frozen blueberries
• 2/3 cup sugar
• 3 tablespoons all-purpose flour
• 1/2 teaspoon grated lemon zest
• 1/8 teaspoon salt
• 1/2 cup all-purpose flour
• 1/2 cup old-fashioned oats
• 1/2 cup packed brown sugar
• 3/4 teaspoon ground cinnamon
• 1/8 teaspoon salt
• 5 tablespoons cold butter