To make sure the consistency of your ice cream bread turns out just right, I highly recommend softening the ice cream at room temperature and avoiding the microwave since it can change the consistency. And most importantly, don’t overmix the batter! Use a spatula or mixing spoon instead of a hand or stand mixer. If your batter is too overworked, it could turn out a bread that is hard and dense. Use a light hand when mixing. It’s okay if some lumps remain.