Learn how to make the best Low Carb & Sugar-free Lemon Curd within minutes! This easy foolproof recipe features instructions for the Instant Pot and tips on calorie-free sweeteners.
Melt the butter in a small saucepan on medium-low heat. Add cardamom, if you want.
Remove the pot from heat and whisk in sweetener, salt, fresh lemon juice, and lemon zest until dissolved. Heat up until almost boiling. Have your egg yolks ready in a little bowl. Whisk some of the hot butter mixture into the egg yolks, whisking, to bring them to temperature and pour yolks into the pot. Whisk and return to the stove over low heat. Whisk continually until the curd starts to thicken noticeably. Do not let boil! Remove from the heat and strain the sugar-free lemon curd into a small bowl. Cover with cling film, pressing it onto the surface so that no skin forms.