Mix all dry ingredients: flour, sugar, cocoa powder, salt and baking powder.
Mix all wet ingredients: buttermilk, eggs, vanilla and oil. **Note - I never buy buttermilk. To make you own, combine one tablespoon lemon juice and enough milk to make 1 cup. Let sit for a few minutes.
Combine wet and dry ingredients until well blended. Add in chocolate chips.
Use a large baking scoop to fill muffin cups nearly all the way to the top.
Bake at 375 F for 15-20 minutes until toothpick inserted comes out clean (I baked mine for 18 minutes and they were perfect).
Notes
This muffin recipe is delicious, with yummy chocolatey goodness in every bite – and they are easy to make!