In a heavy saucepan, combine sugar, water and corn syrup. Stir until sugar dissolves. Cover and bring to a rolling boil. Remove lid, place thermometer in pan and cook to 250°F. Add food coloring and continue cooking to 300°F. (Remove from heat at 295°F as temperature will continue rising.) Let cool to 265°F. Add flavoring or oil and cover for two minutes.
Spray hard candy mold (must withstand high heat) with a cooking spray. Spray a funnel and stopper (also must withstand high heat) with a cooking spray. Pour hot syrup into the funnel with the stopper at the end. Lift stopper to allow enough hot syrup to fill each mold cavity. If using a sucker mold, add sticks immediately. Unmold when cool.
This recipe can be made from scratch or by using our hard candy mix.