2 1/4 c. sifted all-purpose flour
1 c. whole wheat flour
2 tsp. baking soda
1 tsp. baking powder
1 tsp. salt
2 tsp. cinnamon
1/2 tsp. nutmeg
1/2 tsp. allspice
3 eggs
1 c. oil
1 3/4 c. brown sugar
2 tsp. vanilla
2 1/2 c. raw rhubarb (or frozen)

Combine all dry ingredients. Beat sugar, vanilla and eggs with electric mixer on high for 5 minutes. Combine with dry ingredients until just moist. Add rhubarb and walnuts and mix and spread in 2 greased loaf pans. Bake at 350 degrees for 50 minutes (fresh), 65 minutes (frozen). Cool on rack 10 minutes and turn out of pan. Cool and dust with confectioners' sugar.