Whisk together the dry ingredients: whole wheat flour, baking powder, and salt in a large mixing bowl until evenly combined.
In a separate bowl, beat the egg with the vanilla extract and molasses until well blended; then stir in the milk and melted butter.
Pour the wet mixture into the dry ingredients and gently stir with a whisk until just combined, with some lumps remaining—do not overmix.
Preheat the griddle or large skillet over medium heat until hot—test by sprinkling a few drops of water; they should dance and evaporate quickly.
Lightly grease the skillet with butter or oil, then pour about 1/4 cup of batter for each pancake. Cook until bubbles form on the surface and the edges look set, about 2-3 minutes.
Flip the pancakes with a spatula and cook for another 2-3 minutes until golden brown on both sides and cooked through; the pancakes should feel firm and have a slight crispness.