Did you ever find a good recipe? I tried a box mix that was barely sweet and flavorless. I tried a recipe off some blog and I was careful to follow it. It was a total flop. All the blueberries sunk to the bottom and so the bottom of the muffins fall out like mush. It makes me doubt the integrity of bloggers! I found another recipe from the King Arthur's flour site. They talk like they know baking frustration up close and personal so I have the faith to try again.