Flip pancakes only once! Repeated flipping will toughen the pancakes. Pancakes are ready to flip when they’re puffed, covered with bubbles and slightly dry around the edges. Cook the other side until it is golden brown.
To keep pancakes warm, place them in a single layer on a paper-towel-lined cookie sheet in a 200 degree oven. Don’t stack warm pancakes or they will become limp and soggy.