HOW TO MAKE MOIST BLUEBERRY MUFFINS WITH LEMON CURD BUTTER
You are going to mix the dry ingredients into a bowl. Then in a second separate bowl, you will mix the sour cream, eggs, lemon zest and lemon juice. Slowly fold the wet ingredients, into the dry ingredients.
By starting the muffins off at such a high temperature it is the initial high heat of 425 degrees that causes the batter to have greater oven spring or a rapid rise.