Extra-large white rock candy crystals. Südzucker offers a wide variety of brown and white candies to sweeten tea, grog, mulled wine, herb teas, hot milk, etc. Candies are produced by slowly crystallizing a highly concentrated sugar solution. The small sugar crystals grow into larger crystals as time passes. Sugar candy literally takes time to grow to the desired size. The sugar solution is initially heated and then re-cooled to make brown candies. This heating is what gives it the brown color and the typical caramel-like flavor.