1 c. rhubarb, diced fine
2/3 c. sugar
1 stick butter, softened
1 egg
1 tsp. vanilla
1 c. sour cream
1 tsp. baking soda
2 c. flour
1/2 c. nuts, chopped fine
1 tsp. cinnamon

Mix all ingredients, pour into a greased 9"x13" pan. Top with a mixture of 1 teaspoon sugar and 1 teaspoon cinnamon. Bake at 350 degrees for 35 minutes.