2 3/8 cup all-purpose flour (3/8 cup = 6 tablespoons)
1 1/2 teaspoons baking powder
3/8 tsp. baking soda (a scant 1/2 teaspoon)
1/4 cup sugar
1/2 tsp. salt (a heaping half teaspoon)
1/2 tsp. lemon zest, grated
1/2 cup + 1 1/2 teaspoons unsalted butter, very cold
3/4 cup buttermilk
3/8 cup zante currants
Topping
1.5 T. butter, melted
sugar for sprinkling such as demerara or turbinado (regular granulated is fine, too — this is optional, I omitted with the currant scones)