In a large bowl, combine the flour, baking powder, and salt. Cut in the butter until the mixture resembles coarse crumbs. In a separate bowl, combine the milk, syrup, and maple flavoring. Add this to the dry ingredients and mix until a soft dough forms. Scrape the dough onto a floured surface and knead very gently 8-10 times. Divide in half. Gently pat each half of dough into a 7-inch circle. Move the rounds onto a lightly greased cookie sheet. Cut each dough circle into eight wedges with a sharp serrated knife. Gently separate the wedges so they are spaced about an inch apart at the edges. Bake at 400 degrees for 15-18 minutes, or until they're golden brown. Cool slightly.

Frosting: Combine all frosting ingredients until creamy. Frost the tops of the cooled scones.