Homemade biscuits are always so comforting, aren't they? I mean, as long as they aren't dried out. These butter biscuits are so moist and delicious, you won't be able to have just one! Your hands get a little sticky, but it's more than worth it!
Line pan with parchment paper. Spread half of cornmeal on a clean counter. Combine milk and vinegar. Set aside.
Mix flour, baking powder, baking soda, salt, and sugar together in large bowl. Add cut butter to flour mixture. Rub butter and flour mixture between fingers until butter is mixed in (only small pieces remaining).
Make a well in the middle of the flour mixture. Add milk mixture. Combine buttermilk and flour mixture to make a wet dough.
Turn dough onto cornmeal-sprinkled surface and knead a few times to incorporate cornmeal. Pat down until 1-inch tall. Sprinkle top with cornmeal.
Using a biscuit cutter (or open end of drinking glass), cut out biscuits.
Place on parchment paper. Reroll and pat dough until all is cut.
Between each "batch" sprinkle counter and top of dough with cornmeal to prevent sticking. Top each biscuit with a dab of softened butter.