Fold in the chocolate chips carefully ... Take care to monitor the muffins closely. What can I use instead of sour cream? If you don’t have sour cream, you can use unflavored Greek yogurt.

then add the sour cream. Beat until combined. Stir in the bananas and slowly add the flour until just combined. Do not overmix. Fold in the chocolate chips. Pour into the prepared loaf pan and bake ...