Lightly butter a large nonstick skillet. Heat skillet over medium heat. For each pancake, drop 2 to 3 heaping tablespoons of batter into the skillet, 1 inch apart; the pancakes should not be larger than 21/2 inches in diameter. Cook for about 2 minutes or until set on the bottom and lightly golden. Flip pancakes over; cook for 1 more minute or until golden. The pancakes will be very light. Remove the pancakes to a baking sheet and keep warm in a low oven. Repeat with the remaining pancake batter, buttering skillet as needed.