Preheat oven to 375°. Place 2 cups flour in a large bowl. Cut in butter until mixture is the size of peas. Stir in 3/4 cup milk. Dough should be sticky; if needed, stir in some of the remaining milk., Place remaining flour in a small bowl. Using a 1/4-cup measuring cup dipped in flour, remove a scant 1/4 cup dough from bowl and drop into flour; gently turn to coat. Place in greased cast-iron or other ovenproof pan. Repeat with remaining dough., Bake until golden brown, 20-25 minutes. Brush with melted butter; serve warm.