"black butter" meaning in English

{
  "forms": [
    {
      "form": "black butters",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "black butter (countable and uncountable, plural black butters)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "Beurre noir, butter which has been cooked over low heat until the milk solids turn dark brown."
      ],
      "id": "en-black_butter-en-noun-P8wKhZmW",
      "links": [
        [
          "Beurre noir",
          "beurre noir#English"
        ]
      ],
      "tags": [
        "countable",
        "uncountable"
      ]
    },
    {
      "categories": [
        {
          "_dis": "24 76",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
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          "source": "w+disamb"
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        {
          "_dis": "16 84",
          "kind": "other",
          "name": "Pages with 1 entry",
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          "_dis": "21 79",
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          "name": "Pages with entries",
          "parents": [],
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        }
      ],
      "glosses": [
        "A dark, spiced spread made from apples and cider (similar to apple butter), a speciality of Jersey."
      ],
      "id": "en-black_butter-en-noun-uVRRDX9x",
      "links": [
        [
          "apple",
          "apple"
        ],
        [
          "cider",
          "cider"
        ],
        [
          "speciality",
          "speciality"
        ],
        [
          "Jersey",
          "Jersey"
        ]
      ],
      "tags": [
        "countable",
        "uncountable"
      ]
    }
  ],
  "word": "black butter"
}

{
  "categories": [
    "English countable nouns",
    "English entries with incorrect language header",
    "English lemmas",
    "English multiword terms",
    "English nouns",
    "English uncountable nouns",
    "Pages with 1 entry",
    "Pages with entries"
  ],
  "forms": [
    {
      "form": "black butters",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "black butter (countable and uncountable, plural black butters)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "Beurre noir, butter which has been cooked over low heat until the milk solids turn dark brown."
      ],
      "links": [
        [
          "Beurre noir",
          "beurre noir#English"
        ]
      ],
      "tags": [
        "countable",
        "uncountable"
      ]
    },
    {
      "glosses": [
        "A dark, spiced spread made from apples and cider (similar to apple butter), a speciality of Jersey."
      ],
      "links": [
        [
          "apple",
          "apple"
        ],
        [
          "cider",
          "cider"
        ],
        [
          "speciality",
          "speciality"
        ],
        [
          "Jersey",
          "Jersey"
        ]
      ],
      "tags": [
        "countable",
        "uncountable"
      ]
    }
  ],
  "word": "black butter"
}