Let the pancakes cool completely before freezing. Lay them out in a single layer on a baking sheet and pop them in the freezer for about 30 minutes. This step prevents them from sticking together. Once they're firm, transfer the pancakes to a freezer bag, seal it tightly, and store them in the freezer for up to 3 months. When you're ready to enjoy, just reheat them in the microwave, and they're good as new!