RHUBARB CAKE
1 ¼ cup brown sugar
½ cup corn oil
1 egg
2 tsp vanilla
1 ½ cup diced rhubarb
½ cup walnuts
1-cup buttermilk (or sour milk)
2-½ cup flour
1 tsp baking soda
1 tsp baking powder
½ tsp salt
Topping
1 Tbsp melted butter
1 Tbsp cinnamon
½ cup sugar