const data = [
  {
    "Name": "Martine of Martine's Table",
    "City": "Amsterdam",
    "Cuisine_Style": "['French', 'Dutch', 'European']",
    "Ranking": 1,
    "Rating": 5,
    "Number of Reviews": 136
  },
  {
    "Name": "De Silveren Spiegel",
    "City": "Amsterdam",
    "Cuisine_Style": "['Dutch', 'European', 'Vegetarian Friendly', 'Gluten Free Options']",
    "Ranking": 2,
    "Rating": 4.5,
    "Number of Reviews": 812
  }
];

for (const item of data)
    item['Cuisine_Style'] = JSON.parse(item['Cuisine_Style'].replace(/'/g, '"'));

console.log(data);