• Nekomancer@lemmy.world
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    18 days ago

    Buttermilk always seems to have like a one week expiration, but always seems to be fine up to maybe 2 months surprisingly

    • RBWells@lemmy.world
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      18 days ago

      Assuming it’s cultured buttermilk, you can keep it going by adding milk when it’s almost gone, then leaving it on the counter overnight. It’s like yogurt but more robust, less fussy.