It's been five whole years since I was introduced to the world's best muffin recipe. And it's safe to say our relationship goes beyond mere dalliance—these are the muffins I will bake for my future grandkids. These are the muffins I dream about. If muffins were actors, this recipe would be the Daniel Day Lewis of baked goods. If inanimate objects could be recipients of living wills, these muffins would get my house when I take the rainbow bridge to the other side.

In short, I am in love with Blueberry-Sour Cream Muffins. And since February 20 is National Muffin Day, I could not think of a better occasion on which to extol my love for the internet's best blueberry muffins. It all started six years ago...