1. Heat oven to 425°F. Coat 8x8-inch pan with cooking spray.
2. In pan, toss together apples, 2 tablespoons sugar and cinnamon; sprinkle with water.
3. In medium bowl, combine oats, flour and remaining 1/4 cup sugar. Cut in peanut butter and butter with pastry blender or two knives until mixture is size of small peas. Sprinkle crumbs evenly over apples; cover with aluminum foil.
4. Bake crisp 20 minutes. Remove foil; bake uncovered 20 minutes longer or until apples are tender and topping is crisp and golden. Serve warm or at room temperature, topped with ice cream.
This recipe is recommended for 8 servings.