Rhubarb Sour Cream Squares
["1/2 c. sugar", "1/2 c. nuts", "1 Tbsp. margarine", "1 tsp. cinnamon", "1 1/2 c. brown sugar", "1/2 c. shortening", "1 egg", "2 c. flour", "1 tsp. soda", "1/2 tsp. salt", "1 c. sour cream", "1 1/2 c. rhubarb, cut into 1/2-inches"]
["Mix sugar, nuts, margarine and cinnamon; set aside.", "Cream brown sugar, shortening and egg.", "Alternate dry ingredients with sour cream and add rhubarb; turn into greased and floured 13 x 9 x 2-inch pan.", "Sprinkle with topping of sugar, nuts, margarine and cinnamon.", "Bake at 350\u00b0 for 40 to 50 minutes."]
["sugar", "nuts", "margarine", "cinnamon", "brown sugar", "shortening", "egg", "flour", "soda", "salt", "sour cream", "rhubarb"]