Preheat the oven to 200 ° C top and bottom heat. Grease 3 rectangular cake tins with butter.
Chop the bay leaves into small pieces. Mix well with the flour, tartar baking powder, sea salt and sesame seeds in a bowl. Add the butter and mix with a hand mixer. Then add the milk, sour cream and agave syrup or honey and continue to knead into a smooth dough.
Pour the dough into the tins in three equal portions.
Place 2 bay leaves on each of the loaves. Bake the breads side by side in the oven on the middle rack for approx. 25 minutes. (Stick test)