With the stand mixer running on low speed, carefully drizzle the ¾ of the hot syrup over the bloomed gelatin
. You want to leave about 2-3 tablespoons syrup in the pan — eyeballing is ok, there is no need to be exact. Turn the mixer to medium speed and mix until the gelatin
is melted, about 2 minutes. Then turn the mixer to high speed for about 5 minutes, or until the mixture has doubled in volume and turned an off-white color.