Clear Lemon Filling(Used Between Layers Of Cake.  Terrific!)  
["3/4 c. sugar", "1/4 tsp. salt", "3 Tbsp. cornstarch", "3/4 c. water", "1 tsp. grated lemon rind", "1 Tbsp. margarine", "1/3 c. lemon juice"]
["Add gradually, stirring.", "Spread over or between layers."]
["sugar", "salt", "cornstarch", "water", "lemon rind", "margarine", "lemon juice"]