Rhubarb Pie Filling
["1 egg", "1 1/4 c. sugar", "2 Tbsp. flour", "1/2 tsp. salt", "2 c. sliced rhubarb", "2 tsp. margarine", "prepared pie crust for 2 crust pie"]
["In large mixing bowl, beat egg.", "Add sugar, flour and salt; mix well.", "Stir in rhubarb.", "Turn into a prepared pie crust. Dab margarine over top in 4 or 5 spots.", "Place top crust over filling; seal.", "Cover edges and bake at 350\u00b0 for 25 to 30 minutes."]
["egg", "sugar", "flour", "salt", "rhubarb", "margarine", "crust pie"]