Line an 8-inch square baking pan with a piece of aluminum foil large enough to overhang the sides by about 2 inches. Set aside.Advertisement
Bring sugar, 3/4 cup water, and corn syrup to a boil in a medium saucepan over medium high heat. Stir to dissolve sugar, and wash down sides of pan with a pastry brush dipped in water to prevent crystals from forming. Once mixture comes to a boil and all the sugar has dissolved, clip a candy thermometer to pan, and raise heat to high. Continue cooking without stirring until mixture registers 300 degrees. Remove from heat.
Carefully add food coloring, extract, and baking soda; stir slowly with a clean wooden spoon until thoroughly combined and mixture no longer bubbles, about 2 minutes. Pour into prepared pan, and let cool completely. Lift foil to remove candy from pan, and transfer candy to a large plastic bag. Crush with a kitchen mallet into chunks.