In a pot over medium heat, bring the almond milk to a simmer.
Meanwhile, whisk together the egg yolks, powdered sweetener, coconut milk, vanilla, and salt in a bowl together until no lumps remain.
While whisking, pour all the hot almond milk over the egg yolk mixture in a thin stream to avoid curdling.
Return the mixture to the pot, and cook over medium heat, while continuously mixing, until it thickens.
Remove directly from heat, and transfer into a flat dish. Cover with plastic wrap and refrigerate for 4 hours.
(optional) Make 1/2 recipe of our Edible Keto Cookie Dough Recipe for adding at a later step. Once the custard is cold, pour it into a pre-frozen ice-cream bowl, and let it churn for 5-10 minutes.
(optional) Crumble the cookie dough, and spread little pieces over the custard while it's churning.
Let it churn for 15 more minutes, and serve it immediately if you’d like it to be a soft serve texture, or transfer it into a container and freeze it.
Store in the freezer for up to a month.