These easy Double Chocolate Chunk Muffins are rich, chocolatey and made in just one bowl! Homemade chocolate muffins make a sweet breakfast treat or an afternoon pick-me-up.
Pour butter, eggs, buttermilk and sour cream in the center. Mix until just combined (a few lumps in the batter is just fine).
*Making a well in the center helps disperse the wet ingredients in the dry ingredients so that you don’t over mix the batter.
**You might need to check the cake tester in a couple different spots in the muffins because you might insert the tester in a spot where there is a melted chocolate chunk and that might make it seem like the muffin isn’t done inside when it actually is.