Warm milk gently (below 115°F / 45°C) and mix 1/2 cup with yeast in a glass or mug.
Whisk eggs separately.
In a large bowl, combine flour (save 1/2 cup), sugar, salt, whisked eggs, yeast mixture, and remaining milk. Stir until well mixed and no dry flour is left.
Adjust the dough's thickness with reserved flour (add extra if needed), aiming for a thick, slow-dropping consistency.
Cover the bowl with a kitchen towel, and let dough rise in a warm spot for 1 hour, or until doubled in size.
Heat a non-stick skillet with neutral-tasting cooking fat, and spoon the dough into the pan, using a heaping tablespoon of dough per pancake. Cook pancakes for 4-5 minutes per side on medium heat, until golden brown. Adjust heat if they cook too fast or too slow, and continue cooking until all dough is used.