Heat oven to 400°F. Spray 8 or 9-inch square pan with nonstick cooking spray.
In large bowl, combine sugar, pumpkin, milk, oil and egg; mix well. Lightly spoon flour into measuring cup; level off. Add flour and remaining ingredients; stir just until combined. Spoon batter evenly into sprayed pan.
Bake at 400°F. for 15 to 20 minutes or until top is light golden brown. Cut into squares. Serve warm or cool.