I always use Kosher salt in my kitchen! If using table salt, start with half the amount and adjust to taste, as it is much "saltier" by volume.
Instructions
Preheat oven to 450°F. Lightly grease a 10" cast iron pan. Or line a baking sheet with parchment paper.In a large bowl, mix together the dry ingredients. Using your fingers, rub the butter into the dry ingredients. Your mixture should look crumbly.
Pour in your chilled buttermilk and mix gently with a wooden spoon. Just until the buttermilk is incorporated.The mixture will be wet and sticky. This is what you want.
Lightly dust your work surface, scrape the dough out of the bowl and place onto the floured work surface. Lightly dust the top of the dough with more flour.
Begin gently patting the dough to flatten it into a rectangle. Then, using a bench scraper, fold the dough onto itself 4 times, patting it out gently to flatten in between folds. Flatten out to a 1-inch-thick.
Cut out the biscuits and place in your pan on onto a parchment line baking sheet. Place them where they are just touching. You can use your scraps, just be gentle while reshaping them.
Place in the oven for 15 minutes or until the tops are golden brown. Brush with butter if desired. Enjoy!
Notes
Keep the butter in the refrigerator or even the freezer while you are measuring out and mixing the dry ingredients.