Ingredients: 1 Tablespoon of Butter, 1 cup of Sugar, 1/4 cup of Vinegar. In a medium saucepan, go ahead and cook over LOW heat until the mixture reaches the HARD-CRACK stage (265-270 F). Now, let's pour it into a buttered pan and FREEZE. (In the Winter, just set it outside, eh?) Test for HARD-CRACK stage: Turns hard when dripped into ICE COLD water. To serve: Hit with base of common table knife to crack into PIECES. Enjoy!