I have bought the store brand and Oberweis brand eggnog and both make great Ninja Creami Eggnog gelato! Use eggnog that tastes great straight out of the container! Sometimes flavors become a little less intense after the mixture has been frozen and processed. So, it's important that you use eggnog that tastes great and has a rich flavor before it's been frozen. If needed, add some additional nutmeg, vanilla, and cinnamon to the eggnog before freezing.