Pumpkin Cake - cooking recipe

Ingredients

1 box yellow cake mix (reserve 1 c.)
1/2 stick margarine
1 large can Libby's pumpkin
3 eggs plus 1 more egg
2/3 c. milk
1/2 c. brown sugar
2 tsp. cinnamon
1/2 c. softened margarine
1/3 c. chopped walnuts

Preparation

Combine the cake mix, 1/2 stick margarine and 1 egg.
Pat in a 9 x 13-inch pan.
Blend together pumpkin, 3 eggs, milk, brown sugar and cinnamon and mix until smooth.
Pour on top of first mixture.