Heat milk in the microwave until warm (105-110 degrees F). Mix yeast and sugar in with milk and allow it to sit for 5 minutes until foamy. Mix in salt and then add flour, a little at a time, to form a soft dough. Empty dough onto floured counter and knead about 30 times until smooth and elastic, adding flour as needed.
Place dough in a large greased bowl and allow to rise for 1 hour.
Preheat griddle to or skillet to medium-high heat (about 375 degrees F).
Divide dough into 12 equal pieces and then roll out to be a little thinner than a pancake.
Place 2-3 pieces on griddle and flip after 1-2 minutes (or until dough bubbles and underside is browned). Brush the cooked side with butter while the other side cooks for 1 more minute. Remove from griddle and brush with butter (sprinkle with garlic salt if desired). Repeat with the rest of the dough.