I don't have the recipe for the ones at GF, but I do have the one from Boma. They may at least be similar, if not the same.
Scones
Boma, Animal Kingdom Lodge
12 oz butter, softened
12 oz sugar
3 lb flour
2¼ oz baking powder
4½ c heavy cream
7 oz dried currants
Cream butter and sugar. Sift flour and baking powder, and then add to above. Add heavy cream until dough comes together. Add currants and do not over mix, as scones would be tough. Roll dough on a floured surface, about an inch thick. Using a 1½ inch cutter, cut round scones with it. Brush scones with egg wash and bake in a 350 degree oven for about 12 minutes. Watch so they don't burn.
Source: passporter.com