question: What is a good beer pairing for Butterscotch tart?
answer: A great choice for Butterscotch tart is TM10 (Liquid Art.). Here's the recipe:
  Brewed for the Tate Modern’s 10th Anniversary. A saison style beer brewed with ginger and orange peel. Very limited batch of 4000 cork and caged bottles with a silk screened label designed by Johanna Basford. Only available at the Tate Modern.
  ABV: 5.5% | IBU: 20
  Malts:
  - Pale Ale (5.3 kilograms)
  Hops:
  - Bobek (25grams @ start)
  - Bobek (25grams @ middle)
  - Bobek (25grams @ end)
  - Ginger (12.5grams @ end)
  - Orange Peel (12.5grams @ end)
  Yeast: Wyeast 3711 - French Saison™
  Method: Mash: 63°celsius for Nonemin
  Tip: For a fresh and fiery hit, put some ginger into the cold conditioning phase as well.