Ingredients
1-1/2 cups all-purpose flour1-1/2 cups old-fashioned oats1 cup packed brown sugar1/2 cup chopped walnuts1/4 teaspoon baking soda1/4 teaspoon salt1 cup cold butter3 cups sliced fresh or frozen rhubarb1-1/4 cups cold water, divided1-1/2 cups sugar3 tablespoons cornstarch1 teaspoon vanilla extract1/2 teaspoon red food coloring, optionalIce cream, optional
Preparation
In a large bowl, combine the flour, oats, brown sugar, nuts, baking soda and salt. Cut in butter until crumbly. Press 3 cups into an ungreased 13-in. x 9-in. baking dish; set aside.
Soak rhubarb in 1 cup cold water for 3 minutes; drain. In a saucepan, combine sugar and cornstarch. Stir in remaining cold water until smooth. Add rhubarb, vanilla and food coloring if desired. Bring to a boil; cook and stir for 5 minutes or until thickened. Spoon over crust; sprinkle with remaining crumb mixture. Bake at 350° for 23-25 minutes or until golden brown. Serve with ice cream if desired.
