2 to 2 1/3 cups sugar
2/3 cup all-purpose flour
1 teaspoon grated orange peel, if desired
6 cups chopped (1/2-inch pieces) fresh rhubarb
1 tablespoon cold butter, if desired
Heat oven to 425°F. Place 1 pastry round or pie crust in 9-inch glass pie plate. In large bowl, mix sugar, flour and orange peel. Stir in rhubarb. Spoon into pastry-lined plate. Cut butter into small pieces; sprinkle over rhubarb. Cover with top pastry or second crust; seal and flute. Cut slits in several places in top crust. Cover crust edge with pie crust shield ring or strips of foil to prevent excessive browning. Bake 50 to 55 minutes or until crust is golden brown and juice begins to bubble through slits in crust, removing foil during last 15 minutes. Cool on cooling rack at least 2 hours before serving.