"a las mil maravillas" meaning in Spanish

{
  "head_templates": [
    {
      "args": {},
      "expansion": "a las mil maravillas",
      "name": "es-adv"
    }
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "adv",
  "senses": [
    {
      "categories": [],
      "examples": [
        {
          "english": "(please add an English translation of this quotation)",
          "ref": "2009, Esteban Consiglieri, Felicidad Esquiva",
          "text": "se merecía lo mejor de lo mejor, era una excelente compañera, cocinaba a las mil maravillas, pero sobre todo, cuidaba a mi hija como si fuera propia.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "swimmingly"
      ],
      "id": "en-a_las_mil_maravillas-es-adv-p1XrLzyC",
      "links": [
        [
          "swimmingly",
          "swimmingly"
        ]
      ],
      "raw_glosses": [
        "(idiomatic) swimmingly"
      ],
      "synonyms": [
        {
          "word": "a las maravillas"
        },
        {
          "word": "de maravillas"
        }
      ],
      "tags": [
        "idiomatic"
      ]
    }
  ],
  "word": "a las mil maravillas"
}

{
  "head_templates": [
    {
      "args": {},
      "expansion": "a las mil maravillas",
      "name": "es-adv"
    }
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        "Requests for translations of Spanish quotations",
        "Spanish adverbs",
        "Spanish idioms",
        "Spanish lemmas",
        "Spanish multiword terms",
        "Spanish terms with quotations"
      ],
      "examples": [
        {
          "english": "(please add an English translation of this quotation)",
          "ref": "2009, Esteban Consiglieri, Felicidad Esquiva",
          "text": "se merecía lo mejor de lo mejor, era una excelente compañera, cocinaba a las mil maravillas, pero sobre todo, cuidaba a mi hija como si fuera propia.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "swimmingly"
      ],
      "links": [
        [
          "swimmingly",
          "swimmingly"
        ]
      ],
      "raw_glosses": [
        "(idiomatic) swimmingly"
      ],
      "synonyms": [
        {
          "word": "a las maravillas"
        },
        {
          "word": "de maravillas"
        }
      ],
      "tags": [
        "idiomatic"
      ]
    }
  ],
  "word": "a las mil maravillas"
}