1/3 Powdered Sugar
3 Fresh Rhubarb
Combine flour and powdered sugar; cut in butter until mixture resembles coarse crumbs.
Press into the bottom of a greased 11-inch x 7-inch x 2-inch baking pan.
Bake at 350 degrees F for 12 minutes.
For filling, combine the first four ingredients in a bowl.
Stir in rhubarb; pour over a warm crust. Bake at 350 F for 35-40 minutes or until wooden pick inserted in center comes out clean.
Cool on wire rack.
Serve warm if desired.
Store in refrigerator.