Grease bottom only of 13x9-inch pan. In large mixer bowl, combine dry cake mix, water and 3 eggs. Blend and beat as directed on package. Pour into prepared pan. In small mixer bowl, beat pumpkin and 2 eggs. Pour evenly over batter. Pour boiling water over all. Bake at 350 degrees F. for 40-45 minutes until toothpick inserted in center comes out clean.
High altitude adjustment-5200 feet. Prepare recipe above, adding 3 tablespoons of flour. Bake at 375 degrees F. for 35-40 minutes.