That happens to me too! I believe it's because the temperature in your pan isn't quite right. Use a good nonstick or cast iron skillet. Let your pan heat up. Test the heat by dropping one drop of water into the pan. If the water jumps, your pan is ready. Your skillet has to be not too hot or not too cool, and often, the best way to tell is by actually making a pancake. So, make just one small pancake for your first batch instead of making a whole batch and risking them being under or overcooked. That way, even if it doesn't work out, you'll only have wasted one pancake!