Rhubarb Bread

2 1/2 C all purpose flour
1 tsp. vanilla
2 1/2 c diced rhubarb
1 tsp. baking soda
1 egg
1 1/2 c brown sugar, packed
1 C buttermilk or sour milk
2/3 C vegetable oil
Topping:
1/2 C brown sugar, packed
1 tsp. cinnamon
1/4 C flour
2T butter
Preheat oven to 325 degrees F. Lightly grease 2 9" loaf pans. In a bowl stir together: milk and vanilla. in another bowl, mix together 1 1/2 C brown sugar, egg and oil. Combine flour and baking soda, stir into brown sugar mixture alternately with milk mixture. Fold in rhubarb and pour batter into prepared pans. For the topping:combine brown sugar, flour and cinnamon,. Cut in butter with a pastry blender. Sprinkle evenly over both loaves. Bake for 40-50 minutes or until a toothpick inserted in the center comes out clean.