Pancake batter can be made a day in advance and stored in the fridge until ready for use. Pancakes can be made ahead and stored in the fridge for up to 3 days. Reheat in a skillet over medium low heat with some butter for 1-2 minutes, a 350°F oven for 2-3 minutes, or heat in a microwave until warm (about 15-20 seconds). Same instructions for leftover pancakes. Pancakes can also be made ahead and frozen, with parchment paper between each pancake to avoid sticking. Frozen pancakes can be thawed overnight in the fridge and heated per above instructions, or can be toasted in a toaster straight from frozen for about 3-4 minutes or in a 350°F oven for 3-4 minutes.