ad hoc buttermilk biscuits

i’ve been doing a lot of biscuit “research,” lately. these biscuits are adapted from “ad hoc at home” by Thomas Keller and i substituted Cup4Cup gluten free flour for the cake flour and regular all-purpose flour called for in the recipe. i did find the original recipe just a tad on the salty side, for my taste, and cut the added salt by one-third.  i was also feeling lazy, so i just “mixed” the dough in the food processor, rather than doing it by hand.