Rhubarb Cake
["1/2 c. margarine", "1 1/2 c. white sugar", "1 1/2 tsp. cinnamon", "1/2 tsp. salt", "1 tsp. vanilla", "1 egg", "2 c. flour", "1 tsp. soda", "1 c. buttermilk", "2 c. finely chopped rhubarb (I use 3 c.)", "1/2 c. sugar", "1/2 tsp. cinnamon"]
["Beat well margarine, 1 1/2 cups sugar, 1 1/2 teaspoons cinnamon, salt, vanilla and egg.", "Add alternately and beat well, flour, soda and buttermilk.", "Fold in rhubarb.", "Spread in 9 x 12-inch well-greased pan.", "Top with 1/2 cup sugar and 1/2 teaspoon cinnamon.", "Mix together and sprinkle on cake.", "Bake at 350\u00b0 for 30 minutes or until done."]
["margarine", "white sugar", "cinnamon", "salt", "vanilla", "egg", "flour", "soda", "buttermilk", "rhubarb", "sugar", "cinnamon"]