In a small bowl, combine the lukewarm milk (not hot!) with the active dry yeast and 1 tablespoon of sugar. Stir gently and let sit for 5–10 minutes, until it becomes foamy.
In a large mixing bowl, whisk together flour, remaining sugar, and salt.
In a separate bowl, whisk the eggs, melted butter, and vanilla extract until smooth.
Pour the yeast mixture and the egg mixture into the dry ingredients. Stir until just combined—don’t overmix. The batter should be smooth but thick.
Cover the bowl and let the batter rest at room temperature for 1–2 hours (or overnight in the fridge). This gives the yeast time to ferment, creating flavor and fluffiness.
Heat a nonstick skillet or griddle over medium-low heat. Lightly grease with butter or oil.
Scoop batter into the pan (about ¼ cup per pancake). Cook for 2–3 minutes on the first side, or until bubbles form on the surface and the edges start to look set. Flip and cook another 1–2 minutes.
Stack your pancakes high, top with butter, maple syrup, or berries, and enjoy the rich, fluffy result worthy of a Michelin kitchen.