1 yellow cake mix
1 pkg. instant pistachio pudding (small)
4 eggs
1/4 c. water
1/4 c. oil
1/2 pt. (8 oz.) sour cream
4 drops green food coloring
4 tsp. cinnamon
4 tbsp. brown sugar
1/2 c. nuts

Combine cake mix, pudding mix, eggs, water, oil, sour cream and food coloring. Mix well and pour into a bundt pan. Combine cinnamon, sugar and nuts for topping; sprinkle on batter.

Bake at 350 degrees for 45 minutes.