No joke this is what she sent to me, word for word!
"i just grabbed a buttermilk biscuit recipe (for temp and timing etc.) but remembered that we used 3 c flour, 4 tsp baking powder, 2 T sugar and 1.5 cup buttermilk. and 1.5 sticks butter. and maybe a tsp of baking soda."
plus i add the butter and honey (for the wash) cuz why not use that extra half stick?
Kristin's advice: work as quickly as possible and keep the dough as cold as possible.