Preheat oven to 425°. Mix dry ingredients together in a food processor with butter and combine just to a crumbled texture. With hands, mix in walnuts and buttermilk. Mold into 1 inch–thick circles, then cut into even triangles. Place on a baking tray and bake until golden brown, about 20-25 minutes.

For glaze, mix confectioners’ sugar with maple syrup, adding more confectioners’ sugar if needed. Glaze warm scones and enjoy.