INGREDIENTS
1 1/2 cups
packed brown sugar
1/2 cup
vegetable oil
1
egg
1 cup
buttermilk
1 tsp
vanilla extract
2 1/2 cups
all-purpose flour
1 tsp
baking soda
1 tsp
salt
1 1/2 cups
chopped fresh or sliced frozen rhubarb
1/2 cup
chopped walnuts or pecans
TOPPING:
1/2 cup
sugar
1/4 tsp
ground cinnamon
1 tbsp
cold butter