Rhubarb Coffee Cake
["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"]
["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."]
["flour", "brown sugar", "butter", "egg", "buttermilk", "soda", "salt", "vanilla", "rhubarb"]