What does America's proverb 'I can't believe it's not butter' mean

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I Can't Believe It's Not Butter!

What does America's proverb 'I can't believe it's not butter' mean? - Quora

What does America's proverb 'I can't believe it's not butter' mean? - Quora

I Can't Believe It's Not Butter! Original Spread, 45 oz - Smith's Food and Drug

What does America's proverb 'I can't believe it's not butter' mean? - Quora