Ingredients:

  • 2 cups (400g) Granulated Sugar
  • 1 cup (240ml) Water
  • 1/4 teaspoon (1.25ml) Light Corn Syrup
  • Optional: Food Coloring
  • Optional: Flavor Extracts

Instructions:

  1. Thoroughly clean and sterilize your jars/glasses. Dip your sticks/strings in water, then roll in granulated sugar. Allow to dry completely.
  2. In the saucepan, combine sugar and water.
  3. Heat over medium heat, stirring constantly, until the sugar is completely dissolved. Ensure no sugar crystals remain on the sides of the pan.
  4. Add corn syrup and bring the mixture to a boil.
  5. Use the candy thermometer to monitor the temperature. Boil until the mixture reaches 235-240°F (113-116°C) – the soft-ball stage.
  6. Remove from heat and let the mixture cool for 5-10 minutes. This helps prevent large crystal formations.
  7. If using, stir in food coloring and flavor extract.
  8. Carefully pour the hot sugar solution into the prepared jars.
  9. Attach clothespins to the sticks/strings and suspend them into the jars, ensuring they don't touch the bottom or sides.
  10. Let the jars sit undisturbed at room temperature for 1-2 weeks, or until the crystals reach your desired size. Avoid moving or bumping the jars. Patience is key for perfect rock candy.
  11. Carefully remove the rock candy from the jars. Allow to dry on a wire rack.
  12. Devour your sweet creation!