A bakery-style muffin is a large, extra-tall muffin with a domed top. At home, this is achieved by a few steps. First, use a thick muffin batter. Second, fill the muffin batter up to the top of the muffin cup. And third, bake the muffins at an initially high oven temperature. The high temperature lifts the muffin tops up. For additional lift, bake the muffins in every other cup of the muffin pan.