Preheat the oven to 350 F
In a large bowl whisk together the flour, sugar, baking powder, and salt.
Add the pieces of cold butter and cut into the dough using a pastry cutter or a fork until the texture is a coarse meal. You want the butter to be small,(similar to making pie crust or cornmeal). Stir in chopped pistachios.
Lightly whisk together the yogurt or heavy cream, egg, vanilla extract, andhoney. Stir into the butter/flour mixture with a rubber spatula until combined.Do not over-mix.
Lay the dough out on a lightly floured work surface and lightly knead with a lightly floured hand about 4 times. Pat the dough out to an 8 or 9-inch circle, about 1 inch thick. I use a circle cookie cutter but you can also cut them into triangles.
Transfer the scones onto a parchment paper-lined baking sheet. Bake at 350F for 15-20 minutes until golden brown.