Rhubarb Coffee Cake - cooking recipe

Ingredients

2 c. flour
1 1/2 c. brown sugar
1/2 c. butter
1 egg
1 c. buttermilk
1/2 tsp. soda
1/2 tsp. salt (optional)
1 1/2 tsp. vanilla
1 1/2 c. rhubarb, cut up

Preparation

Cream the sugar and butter.
Add egg, beaten with some of the flour, then add buttermilk and vanilla.
Stir in rhubarb.
Pour into 9 x 9-inch square pan.
Sprinkle on top the following (mixed together): 1 cup white sugar and 1 teaspoon cinnamon.
Bake 40 minutes at 350\u00b0.