I got 18 muffins out of the batter, filling the cups 2/3 full. My muffins were a bit dry, but very tasty with butter and strawberry jam on them.
In our family opinion it needs more sugar to add sweetness and enhance the flavour.
These were better than my usual peanut butter muffin recipe - much moister. I used chunky peanut butter and left out the chopped peanuts - and of course added about a cup of chocolate mini-chips. They were great warm from the oven...
My family is a bunch of peanut butter lovin' fools. These muffins made a great snack and were gobbled up at lightening speed. They had a nice tender texture with lovely domed tops. Thanks for posting because this one will get used a lot at my house.