Preheat an electric skillet/griddle to 350 degrees, or heat a large frying pan over medium-high heat. In a large bowl, beat together all ingredients until well-combined, but do not over-mix. Let batter rest for 10 minutes.
Butter or grease the griddle. Ladle quarter-cupfuls of the batter onto the griddle. Cook until the edges of the pancakes start to set and bubbles start to form on the surface of the pancakes. Flip. Cook another 1-3 minutes until pancakes are golden brown on the other side. Serve immediately with butter and syrup.
Cook's Note: If you want really fluffy pancakes, substitute 1/4 of seltzer water for 1/4 cup of the milk.