Mix all ingredients up to and including vanilla extract with the mixer. Then slowly add enough milk to form a smooth dough. Then add stevia in very small amounts until the dough has reached the desired sweetness. Note: The muffins taste a little less sweet than the batter! Then distribute the dough in muffin molds and bake at 190 ° C for 15-18 minutes.
Tip:
Depending on the type of stevia product you use (drops, powder, diluted powder), the amount required varies. I use the diluted powder, where one teaspoon of stevia is equivalent to one teaspoon of sugar, about 1/4 to 1/2 cup of this is needed.