You'll be amazed what a difference the addition of sour cream makes to a blueberry muffin recipe. Use fresh or frozen blueberries.
These muffins are wonderful. I always double the amount of blueberries that are mentioned in a recipe and this was no exception. And as usual, I dusted the blueberries in flour before gently folding them into the batter to keep them from sinking although the batter was rather thick and I probably didn’t need to. The muffins are delicious and have great flavor and texture. This is a great recipe and I will be making them again. - 25 Aug 2012