Orange Rhubarb Bread

First fresh rhubarb recipe!  I love rhubarb, my stalks seem to be short and fat this year, it's been a strange spring.  I'm happy the two nights of frost we had a couple of weeks ago didn't harm them.  It killed my lilac buds, it doesn't look like we will have a single bloom :(.  This is a new recipe.  Very, very  moist, must be the sour cream.  I will be making this again!

Orange Rhubarb Bread

1/2 c. butter, softened
1 c. sugar
2 eggs
grated orange peel of 1 whole orange
1/2 tsp. vanilla
1-1/2 c. flour
1/2 tsp. baking powder
1/2 tsp. cream of tarter
1/4 tsp. baking soda
1/4 tsp. salt
1/2 c. sour cream
1-1/2 c. finely chopped fresh rhubarb
1/2 c. chopped walnuts, optional

In a large bowl, cream butter and sugar until light and fluffy. Beat in the egg, orange peel and vanilla. Combine the flour, baking powder, cream of tartar, baking soda and salt; add to creamed mixture alternately with sour cream. Fold in rhubarb.  Add walnuts it desired.
Transfer to 8 x 4-in. loaf pan coated with cooking spray. Bake at 350° for approximately 50 minutes or until a toothpick inserted near the center comes out clean. Cool for 10 minutes before removing from pans to wire racks.
WW PointsPlus™ = 69 pts. per loaf