Slowly warm the milk over low heat in a saucepan.

Stir in vanilla and stevia.

Pour from saucepan into BlendTec.

Note: if you are going to double the recipe, I recommend blending only up to 16 ounces of warm milk at a time in a blender.

Blend until frothy and foamy.

Pour into mugs.

Optional: whipping cream and/or shaved dark chocolate