Prepare a 9x13 inch baking dish by sifting 2 cups powdered sugar evenly over the bottom of pan. Set aside. In bowl of electric mixer, sprinkle gelatin over 1/2 cup water. Let bloom. In a 2 quart saucepan, combine sugar, corn syrup and remaining 1/2 cup water. Stir to dissolve and bring to a boil, stirring to ensure no scorching. Bring mixture to 240 degrees. Remove from heat and pour into 2-cup heatproof glass measuring cup. Pour a small amount of liquid on prepared gelatin and mix on medium ...