At Osteria ai Promessi Sposi in Venice, Italy, chef Claudio Furlanis taught us how to make a dish of his own creation—pasta tossed with cherry tomatoes, sautéed onion and anchovies. Furlanis briefly roasted the tomatoes to render them soft and juicy and to concentrate their flavor before introducing them to the other ingredients. The umami quotient was deliciously high from the tomatoes and anchovies, and with the sauce cooked into the pasta until the noodles were perfectly al dente, each bite was extraordinarily satisfying and flavor-filled. This recipe is our adaptation of his dish. We swapped rigatoni or ziti for the very large, short, tube-shaped noodles we had in Venice and added some garlic and pepper flakes for a little pungency. We also like to finish the pasta with grated Parmesan.