At just 1g net carb and ultra (ultra!) frothy, this keto espresso martini is a super simple and delicious sugar free cocktail. Sugar Free & Keto Espresso Martini 🍸 Ultra (ultra!) frothy Let’s cut to the chase: the secret to ultra frothy espresso martinis? Using freshly brewed (i.e. still steamy hot) espresso. Yup, that’s it! …