Umberto, an Italian restaurant and pizzeria in Long Island, is known for its signature dish, the Grandma Pie. It is a family-owned restaurant and was established in 1965 by Umberto Coreo. Grandma pie was initially prepared in-house by the homesick emigrated Italian Americans.  But in no time, it became famous and Umberto was the first to sell it commercially. It is a rectangular/square pizza cooked in an olive oil-coated pan, covered with a layer of mozzarella and in uncooked canned or fresh tomatoes. The cheese goes directly on the dough with the sauce on top. It is tossed in the oven immediately after being stretched on the pan, giving it a slightly denser and crispier crust.

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