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  1. What Is Oleo And Why Did My Grandma Use It? - Southern Living

    Oct 22, 2025 · Oleo, also known as margarine, is a butter substitute made from plant-based oils. Oleo's popularity surged in the United States during the Great Depression and World War II …

  2. What Is Oleo—And Why Is It In So Many of My Grandma's Recipes?

    Apr 1, 2024 · You may come Oleo in vintage recipes, but what does it mean? Learn all about this classic baking ingredient and how to use it.

  3. What is Oleo in Baking (And Why It was Illegal)

    Jun 5, 2023 · Here’s everything you need to know about Oleo - what it is, how it compares to butter, and the fascinating history behind it. Learn more.

  4. What is Oleo margarine? - CopyKat Recipes

    May 3, 2010 · Oleo is simply an old term for margarine that was commonly used in recipes from the 1930s through the 1970s. Today I’ll explain everything you need to know about this classic …

  5. Margarine - Wikipedia

    Margarine (/ ˈmɑːrdʒəriːn /, also UK: / ˈmɑːrɡə -, ˌmɑːrɡəˈriːn, ˌmɑːrdʒə -/, US: / ˈmɑːrdʒərɪn / ⓘ) [1] is a spread used for flavoring, baking, and cooking. It is most often used as a substitute for …

  6. What is oleo in baking? - Chef's Resource

    May 12, 2024 · Oleo, commonly known as margarine or shortening, is a popular ingredient used in baking. It serves as a substitute for butter and is particularly valued for its ease of use and …

  7. What Is Oleo? (+ How to Use It) - Insanely Good

    Mar 7, 2023 · Oleo is not butter, but it is a butter substitute. The proper name is oleomargarine, though it most often goes simply by margarine. And where butter is made of churned cream, …