In a large bowl, beat together the butter and cream cheese. Add in the sugar and baking powder. Beat until combined, scraping down the bowl as needed. Beat in the egg, vanilla, and almond extract. Scrape down bowl, and then beat in flour.

Divide the dough in half. Tint one half of the dough in green or red (or whatever color you choose). Roll out the dough on waxed paper, or a flour dusted rolling mat. Roll into a 12 inch by 8 inch rectangle. Roll out the non-tinted dough into the same dimensions. Place one square of the dough on top of the other. Starting at the long edge of the dough, tightly roll both doughs together into a log, to create the swirl. Wrap the dough log in plastic wrap and refrigerate for about 4 hours.

Preheat the oven to 375 degrees. Unwrap the dough, and using a sharp knife, slice the cookies in 1/4″ wide slices. Place them about 1 inch apart, on a parchment lined baking sheet. Bake for 8-10 minutes, or until the edges are firm. Allow the cookies to cool 2-3 minutes on the sheet before placing them on a wire rack to cool completely.