Add 1/3 cup sugar to the yolks and whisk until the mixture is thick, creamy and pale yellow. Add the salt, cinnamon, nutmeg, ginger, red chile and dissolved gelatin. (Don’t worry about clumps in the gelatin-they’ll dissolve when the mixture is heated.) Start heating the water in the double boiler, or if you’re using a large bowl instead, set the bowl over a pan of boiling water, making sure the bowl doesn’t actually touch the water.