Layer apples and cranberries, in a lightly greased 2-quart baking dish. Sprinkle with lemon juice; spoon 1 cup sugar over fruit. Set aside.
Step 2
Combine oats and next 3 ingredients; stir just until dry ingredients are moistened and the mixture is crumbly. Sprinkle over fruit; bake, uncovered, at 325˚ for 1 hour. Serve dessert warm with vanilla ice cream.