These sourdough chocolate chip muffins are so light and fluffy, made with tangy sourdough discard and melty chocolate chips. You'll get bakery-style muffins that are perfect for lunchboxes or anytime snacks!
Preheat the oven to 425°F. Line a standard muffin tin with paper liners.
In a large mixing bowl, whisk together the flour, baking powder, baking soda, and salt.
In a separate bowl, whisk the eggs and sugar until light and frothy.
Add the sourdough discard, oil, melted butter, vanilla, and buttermilk. Mix well until fully incorporated.
Pour the wet ingredients into the dry mixture and stir gently until just combined. Do not overmix.
Fold in the chocolate chips.
Divide the batter evenly between the 12 muffin cups (they should be fairly full). Sprinkle a few extra chocolate chips on top if desired.
Bake for 17–19 minutes or until the tops are golden brown and a toothpick inserted into the center comes out clean. Note: If your oven runs hot, reduce to 400ºF after the first 5 minutes.
Cool in the pan for 5 minutes, then transfer to a wire rack to finish cooling completely.
Notes
How to Store: Store the muffins at room temperature in an airtight container for up to 5 days. Or, they can be frozen for up to 2 months. To freeze, cool muffins completely, wrap tightly, and put in a zipper freezer bag. Thaw at room temperature.
Tips
Muffin liners help prevent sticking and are especially helpful with high-moisture batters like this one.
Baking temperature tip: Starting at 425ºF gives a nice domed muffin top. If your oven runs hot, reduce to 400ºF after the first 5 minutes.
The sourdough discard adds a slight tang, but the sugar and chocolate balance it out beautifully.
No buttermilk on hand? Use 227g (1 cup) whole milk + 1 tablespoon vinegar or lemon juice as a substitute.