½cup(129g)creamy peanut butternatural peanut butter is not recommended due to oil separation; crunchy can be used if preferred
½cup(100g)granulated sugar
½cup(100g)light brown sugarpacked
1cup(180g)chocolate chips
Instructions
Preheat your oven to 425°F. Lightly grease or fill a muffin pan with liners.
In a medium bowl, whisk together the flour, baking powder, baking soda, and salt.
In a large bowl, whisk together the eggs, kefir, vegetable oil, vanilla extract, peanut butter, and sugars.
Gently stir the dry ingredients into the wet ones just until a few flour streaks remain.
Fold in the chocolate chips (feel free to set some aside to sprinkle on top, or fold the whole cup in and add extra to the tops).
Fill the muffin liners with batter so they're almost full, then sprinkle chocolate chips on top.
Bake on the middle rack at 425°F for 5 minutes. Then reduce the temperature to 350°F and continue baking until a toothpick comes out clean (about 15-20 more minutes).
Video
Notes
Storage: Store cooled muffins in an airtight container at room temperature for 4 days or in the freezer for 1 month.Jumbo Muffins: Fill jumbo muffin pan ¾ full, top with chocolate chips, and bake according to the instructions above. They may take a few minutes longer.Mini Muffins: Bake 24-28 mini muffins at 350°F for 10-15 minutes.Kefir: This recipe is sponsored by my friends at Lifeway Foods. Their organic whole milk plain kefir is best in this recipe, but can be substituted with buttermilk if needed.