Rhubarb Nut Bread

1-1/2 cups brown sugar
1 egg, beaten
1 teaspoon baking soda
1 teaspoon vanilla
1-1/2 cups rhubarb, cut in small pieces
2/3 cup vegetable oil
1 cup buttermilk
1 teaspoon salt
2-1/2 cups flour
1/2 cup walnuts, chopped

Topping:
1 tablespoon butter
1/3 cup sugar

Preheat oven to 350 degrees F. Combine brown sugar, oil and beaten egg. In a small bowl mix together milk, baking soda, salt and vanilla. Add milk mixture to sugar mixture alternately with flour, beating well after each addition. Fold in rhubarb and nuts. Turn into 2 greased and floured 8 x 4 x 3-inch loaf pans. Mix topping ingredients and sprinkle on top of loaves. Bake about one hour or until toothpick inserted in center of bread comes out clean. Yield: 2 loaves