This was one of the first recipes I ever made after I got married and was trying to show my husband that I could be domestic. I totally had him fooled! This recipe makes soft, moist muffins using a cake mix. They are quick and easy to throw together, but taste like you spent all day baking!
Mix dry cake mix (don't follow directions on the box), baking powder, flour, milk, oil, and eggs together thoroughly. Fold in the blueberries (reserving a few to sprinkle on top) very gently, only stirring a couple of times so that your batter doesn't turn blue/purple.
Pour into lined muffin cups, filling about 2/3 full, and bake for 15-20 minutes.
Makes 16-18 muffins.
The solution to sinking fruit is to toss them in a tablespoon or two of flour from the recipe's dry ingredients — just enough flour to give them a coating. Then, fold the flour-coated fruit into the batter as the very last step before baking.