Use a small ladle or a squeeze bottle to pour the batter into the poffertjes pan.Make sure to grease the pan with butter before pouring the batter to prevent sticking.Use a chopstick or toothpick to flip the poffertjes over during cooking.Keep an eye on the heat, as the poffertjes can easily burn if the heat is too high.Serve the poffertjes warm for the best taste and texture.