8 x 8-inch baking dish (Using a clear dish will allow you to see if the butter is absorbed at the end of the baking time.)
Ingredients
6tablespoonsbutter, cut into pieces
2 ½cupsall-purpose flour
1tablespoonbaking powder
½teaspoonbaking soda
1tablespoongranulated sugar
2teaspoonskosher salt
1 ¾cupsbuttermilk, room temperature, and shaken
Instructions
Preheat the oven to 450°F.
Add the butter to the baking dish and place it in the oven for about 5 minutes to melt.
Whisk the flour, baking powder, baking soda, sugar, and salt in a large bowl until well mixed.
Pour the buttermilk into the flour mixture. Use a spatula to mix just until combined, being careful not to overmix.
Spoon the batter into the baking dish and spread it into an even layer. Score the top of the batter into 9 equal squares. This will make it easier to cut the biscuits after baking them.
Bake until golden brown, about 23-25 minutes. If the top starts to brown too much, place a sheet of aluminum foil over the top for the last few minutes of baking. Let the biscuits cool in the pan for 5 minutes until all of the butter is absorbed.