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Easy Crystal Candy Recipe: Homemade Sparkling Sugar Crystals Guide

Homemade crystal candy, also known as rock candy, sparkles with translucent sugar crystals and pure sweetness. This easy recipe turns simple ingredients into crunchy, crystal-clear delights perfect for gifting or snacking.
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Prep Time 10 minutes
Cook Time 25 minutes
Total Time 1 hour 30 minutes
Servings: 1 pound of candy
Course: Dessert
Cuisine: American
Calories: 110
Ingredients Method Notes

Ingredients
  

  • 2 cups granulated sugar
  • 1 cup water
  • 1/4 cup corn syrup
  • 1 tsp flavor extract vanilla, almond, or fruit
  • Food coloring gel recommended

Method
 

  1. Gather all ingredients and tools: a medium saucepan, candy thermometer, baking sheet or silicone mat, and wooden spoon.
  2. In the saucepan, combine sugar, water, and corn syrup over medium heat. Stir until dissolved into a clear syrup (about 5 minutes).
  3. Attach the candy thermometer and boil undisturbed until the mixture reaches 300°F (hard crack stage).
  4. Remove from heat and stir in flavor extract and food coloring quickly.
  5. Pour the syrup onto the prepared baking sheet or mat. Let it cool 5–10 minutes, then cut into shapes or break into shards.
  6. Cool completely for 45–60 minutes before serving or storing.

Notes

Store in an airtight container at room temperature for up to 2 weeks. Avoid humidity to preserve the crisp texture and sparkle.