Dry:
2 cups cake flour (all-purpose flour will work too)
1 tablespoon baking powder
1/2 teaspoon baking soda
1 scant teaspoon fine grain sea salt (table salt works too!)
1 1/2 stick (6 ounces) unsalted butter, cold
1 cup fontina cheese, grated
3 tablespoons fresh sage (about 6-7 fresh sage leaves), minced
Freshly ground pepper

Wet:
1/2 cup buttermilk, cold and shaken
1 large egg, cold

Egg Wash:
1 large egg
1 tablespoon milk (or 1 tablespoon water)