Preheat oven to 350 and line a muffin tin with liners (how cute are these champagne cupcake liners?). Combine flour, baking powder, salt in a bowl and set aside. Beat together the butter and sugar until fluffy. Add extracts, egg, yolk, champagne and buttermilk, mixing to combine. The batter may look piecy at this stage, which is ok! Slowly add flour mixture to the wet ingredients, and mix until just combined. Pour batter into liners and bake for 14-16 minutes.

For the buttercream: Whip the butter in your stand mixer fitted with the paddle attachment until light and fluffy. Add the powdered sugar and extracts, mixing on low speed until the powdered sugar is incorporated. Then increase speed to high for about 3-4 minutes. Gently stir in the strawberry, if using. Frost and decorate with sprinkles, and a quartered strawberry! I also love these metallic sprinkles!