Step 2
Meanwhile, dissolve the sugar in 1/4 cup water and cook in a small saucepan over medium-low heat until small bubbles begin to appear around the edges of the pan. Carefully swirl the solution, but do not stir. Continue to heat, as bubbles move inward toward the center of the pan and the solution turns darker, 20 to 35 minutes, until the syrup has become a deep, golden caramel color. Carefully add 1/2 cup water to this mixture. (It will sputter violently. If some sugar crystallizes at this point, carefully stir the mixture with a metal spoon. The sugar will remelt.) Turn off the heat and allow to cool slightly.