A tender cake loaded with moist bits of rhubarb. This cake has a topping that gives it just the right amount of crunch.
Cream the shortening and the brown sugar. Add in the egg and mix well.
Combine the baking soda and sour cream. Add alternately with the flour to the batter.
Stir in the rhubarb and vanilla. Add the nuts. Pour into a greased 9 X 13 inch baking dish.
Mix the topping ingredients, cutting the butter into the sugar and cinnamon. Sprinkle evenly on top of the batter. Bake at 350 degrees for 35-40 minutes.