Watch America's Test Kitchen Season 13 Episode 15 Online

Test cook Julia Collin Davison shows host Christopher Kimball how to make perfect Pasta all’Amatriciana. Then, equipment expert Adam Ried reveals his top pick for box graters in the Equipment Corner, and tasting expert Jack Bishop challenges Chris to a tasting of canned whole tomatoes. And finally, test cook Bryan Roof uncovers the secrets to making the best Quick Mushroom Ragu with lots of mushroom flavor.