To make Candied Hazelnuts, pierce 24 toasted and cooled hazelnuts with wooden skewers, and insert in a Styrofoam block to hold skewers up. Place a newspaper on the floor to catch drips. Fill a large bowl with ice and halfway full with cold water. Set aside. In a small saucepan, heat ½ cup (100 grams) granulated sugar and 2 tablespoons (30 grams) water over medium heat until a candy thermometer registers 223°F (106°C) to 234°F (112°C). Place pan in prepared ice bath until mixture begins to thicken, about 45 seconds. Remove pan from ice bath, and place on a heatproof surface next to Styrofoam block. Carefully dip each hazelnut in caramel. Insert skewers in side of Styrofoam block, letting caramel drip onto newspaper. Once caramelized hazelnut threads have stiffened, transfer skewers upright. Store in a cool environment with low humidity until ready to use.