Made without butter or containing no butter.
From butter + -less (suffix meaning without). The -less suffix comes from Old English and has been used for over a thousand years to create adjectives meaning the absence of something.
During wartime rationing, especially in WWII, 'butterless' baking became a common and necessary cooking style. Many vintage recipes from this era are still beloved today, proving that butter isn't always essential for delicious food.
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