Creme brulee is a custard-based dessert with a layer of hardened sugar on top. Typically, creme brulee (also known as burned cream) is already pretty high in fat and the only carb source is sugar, which can easily be replaced with a low-carb alternative. That being said, keto sweeteners like monk fruit, erythritol, stevia, and allulose do not heat the same as sucrose (table sugar). This content is only available to members.