Fantastic Rhubarb Cake

1 1/2 cups raw Rhubarb cut fine
1 cup brown sugar
1/2 cup white sugar
1 egg
1/2 cup butter
1 cup applesauce
1/2 tsp. salt
1 tsp. soda
1 tsp. vanilla
2 cups flour

In large mixing bowl cream sugars and butter, add egg and salt. Stir in applesauce, soda, vanilla, and flour. Add rhubarb. Pour in prepared 9x13x2-inch baking pan and sprinkle with 1/4 cup white sugar and 1 tsp. cinnamon. Bake at 375-degrees for 30 to 35 minutes. The cake is very moist and needs no frosting