On Line Cookbook

Rock Candy

Recipe Information

  • 2-1/2 cups (600 ml) sugar
  • 1 cup (225 ml) water
  • Dissolve sugar in water.
  • Cook without stirring to 247 - 252 degrees (125 C.).
  • Pour syrup into pie pan.
  • It should reach a level about 3/4 of an inch above the strings.
  • Cover the surface with a piece of foil.
  • Watch and wait.
  • It sometimes takes a week to crystallize.
  • Lift the laced pan out.
  • Cut the strings and dislodge the rock candy.
  • Rinse quickly in cold water and put on racks in a very low oven to dry.
Broken into small pieces and piled in an open bowl, this makes a sophisticated looking sugar substitute for coffee. Small clumps clustered on 1/8 inch dowels make attractive swizzle sticks for drinks. Whether the candy be on sticks or on strings, the process of making it is a fascinating experiment in crystallization. Produce it, first, on a very small scale by letting a supersaturated heated syrup cool undistrubed in a test tube into which you have previoulsy sunk a weighted string. Make it on a larger scale by punching holes at the top edge of a thin 8 inch square pan and lacing about seven strings from one side to the other. Place the laced pan in a deeper pan to catch excess syrup. I haven't tried this. The recipe came from the Joy of Cooking.