When it comes to combining wet and dry ingredients, avoid the temptation to over-mix. Your batter should still have a few clumps and not be smoothed to perfection. Overmixing causes too much gluten to form, leaving your pancakes overly dense! Another common mistake is to drop the batter in the skillet right away. In fact, some chefs recommend leaving your batter to sit for 5 minutes before cooking. This will allow bubbles from your rising agent to form, giving the batter a nice spongey texture.