Muffins rise in the oven and then fall after removing them when there is too much baking soda or baking powder (leavening) compared to flour. Reduce the amount of leavening or increase the amount of flour to fix this.u003cbr/u003eu003cbr/u003eIf you follow this recipe exactly, the tops of your muffins will stay nice and high after baking. u003cbr/u003eu003cbr/u003eSince this recipe is measured in cups of flour, it's best practice to spoon the flour into the cup rather than making one big scoop in the bag. This ensures the flour is not too packed and matches the amount in this recipe exactly.