To make the pesto, mix all the ingredients in a mini food processor (you can add more olive oil for a runnier consistency).
To make the snowmen, cut the tip off the grape tomatoes.
Slice a bocconcini to make the bottom of the hat.
Slide the grape tomato tip onto a canapé stick, followed by the slice of cheese.
Next, add two bocconcinis.
Top with sesame seeds for eyes and buttons, a small sliver of tomato peel for the nose, and a fresh basil scarf.
Assemble the additional snowmen.
Cook the pasta in salted water according to the packet instructions.
Drain and toss with the pesto and a little pasta water.
Transfer the pasta pesto to a bowl.
Top with the snowmen.
Serve.