1. Preheat oven to 375°F (190°C) and line a 9×13 inch pan with parchment paper.

2. In a medium bowl, whisk together the flour, baking powder, and salt.

3. In a large bowl, cream the butter and granulated sugar with an electric mixer until light and fluffy.

4. Beat in the egg and vanilla extract until just combined.

5. On low speed, gradually mix the dry ingredients into the wet ingredients until no flour streaks remain.

6. Press the dough evenly into the prepared pan and bake for 18-22 minutes until edges are lightly golden.

7. Allow the bars to cool completely in the pan before frosting.

8. To make the frosting, beat softened cream cheese and butter until smooth, then gradually mix in powdered sugar and vanilla.

9. Spread the frosting evenly over the cooled cookie bars.

10. Melt candy melts or chocolate chips and pipe paw prints onto the frosting, using one oval for the pad and three dots for the toes.

11. Refrigerate for at least 30 minutes to set the frosting before cutting and serving.