Heat oven to 375°F. Spray 9 or 8-inch square pan with nonstick cooking spray. In large bowl, combine all cake ingredients; stir 50 to 75 strokes with spoon until mix is moistened. Pour into sprayed pan.
In medium bowl, combine all crumb topping ingredients; mix well. Drop by teaspoonfuls over batter.
Bake at 375°F. until center is puffed and set. Bake 9-inch pan 30 to 40 minutes; bake 8-inch pan 35 to 45 minutes. Cool 30 minutes. Serve warm or cool.