Combine dry ingredients - ftlour, cocoa powder, sweetener, baking powder, salt
In a separate bowl combine cream and butter with hand mixer. Then add eggs and vanilla and mix.
Add the dry ingredients to the wet mixture until well combined.
Add bakers chocolate (melted and cooled) and half of the chocolate chips (remaining chocolate chips to be sprinkled on top of muffins) and fold together
Pour mixture into muffin tins. Top with remaining chocolate chips
Bake in preheated oven at 359 for 20 minutes. Test with toothpick to check if done.