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Tomato Sauce with Onion and Butter

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Tomato Sauce with Onion and Butter
Book: Essentials of Classic Italian Cooking by Marcella Hazan (1992)

crumb: tomatoes simmered slowly with butter and a halved onion

Essentials of Classic Italian Cooking includes “Tomato Sauce with Onion and Butter”. Marcella Hazan wrote it (1992, p. 152). This book set the base for classic Italian home cooking in English. It covers soffritto, ragù, risotto and light sauces. Hazan calls it the simplest of all sauces to make. Food & Wine says it first appeared in 1973 as Tomato Sauce III. That book was The Classic Italian Cook Book.

Differences:

The online recipe is the book recipe, printed by permission of Knopf. Both list 2 pounds of fresh ripe tomatoes or 2 cups of canned Italian plum tomatoes. Both add 5 tablespoons of butter, 1 medium onion cut in half, and salt. Both cook it uncovered at a very slow, steady simmer for 45 minutes. Both stop when the fat floats free from the tomato. Both mash large pieces of tomato with a wooden spoon. Both discard the onion and toss the sauce with 1 to 1½ pounds of pasta. The book points to its own pages for preparing fresh tomatoes and for potato gnocchi. The online recipe drops those page references. The X post used a 28-ounce can of San Marzano tomatoes and a Vidalia onion. That is more tomato than the 2 cups in the book. It sauced 1 lb of pasta in a skillet.

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Tomato Sauce with Onion and Butter
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Tomato Sauce with Onion and Butter
Source
Essentials of Classic Italian Cooking by Marcella Hazan (1992)
Differences

The online recipe is the book recipe, printed by permission of Knopf. Both list 2 pounds of fresh ripe tomatoes or 2 cups of canned Italian plum tomatoes. Both add 5 tablespoons of butter, 1 medium onion cut in half, and salt. Both cook it uncovered at a very slow, steady simmer for 45 minutes. Both stop when the fat floats free from the tomato. Both mash large pieces of tomato with a wooden spoon. Both discard the onion and toss the sauce with 1 to 1½ pounds of pasta. The book points to its own pages for preparing fresh tomatoes and for potato gnocchi. The online recipe drops those page references. The X post used a 28-ounce can of San Marzano tomatoes and a Vidalia onion. That is more tomato than the 2 cups in the book. It sauced 1 lb of pasta in a skillet.

Book recipe
We do not offer this for print or share because it is not public domain. Buy or borrow the book.
Online sources
PBS Food · Marcella Hazan’s Tomato Sauce with Onion and Butter (https://www.pbs.org/food/recipes/marcella-hazans-tomato-sauce-with-onion-and-butter)
X · @SkinnerPm (https://x.com/SkinnerPm/status/2077160127929393207)
Food52 · Marcella Hazan's Tomato Sauce With Onion & Butter (https://food52.com/recipes/13722-marcella-hazan-s-tomato-sauce-with-onion-butter)
Eat Your Books · Essentials of Classic Italian Cooking (Tomato sauce with onion and butter) (https://www.eatyourbooks.com/library/202239/essentials-of-classic-italian-cooking)
web writeups (https://www.google.com/search?q=tomato+sauce+with+onion+and+butter+recipe)
Date
Sep 2026
Source: what this book is
Essentials of Classic Italian Cooking by Marcella Hazan (1992).
This book set the base for classic Italian home cooking in English. It covers soffritto, ragù, risotto and light sauces.

Reference: Essentials of Classic Italian Cooking by Marcella Hazan (1992). Publisher: Knopf, 2022 edition, hardcover, ISBN 978-0593534328.