For a creamier texture, replace 2 tablespoons of skim milk with 2 tablespoons of half and half. This small amount adds a bit more fat but provides a richer texture.
For the sweetener, you can get away with a reduced calorie sweetener for the custard, but do use granulated sugar for the topping, so that it melts appropriately under the flame.Courtesy of Spa Index Guide to Spas and Contributors | https://www.spaindex.com/raspberry-custard-brulee/