Discard all but 2 TBS of the pancetta grease. Heat the 2 TBS of grease over medium low heat, then add the sliced onions to the pan. Cook, stirring frequently, until thoroughly caramelized and slightly crispy, about 1. While the onions are cooking, bring a large pot of heavily salted water to a boil. Cook the fettucine according to package directions and drain, reserving 1 cup of the pasta water. Place the cup of pasta water in the blender with the squash and the 14 c. Toss the squash puree with the fettucine. Just before serving, melt the 1 TBS of butter in a small frying pan. Fry the sage leaves in the butter until crispy, about 2 minutes. IMG_6304-406x305.jpg' alt='Fried Squash' title='Fried Squash' />To assemble, divide the pasta between the serving plates, and top generously with cooked pancetta, caramelized onions, and fried sage. Serve immediately. These fried zucchini are often can be served as an appetizermeze or a side dish. Soda water in the batter makes them delightfully airy and crunchy. Step by Step photo tutorial for Fried Patty Pan Squash.