Maris Pipers with Shallot and “Butter en Eek”

Serves 4
Potato

• 500g (ca.1lb) Dutch Maris Pipers (or similiar potatos) of the same size 1kg (41/3 cup) salted butter

Butter en eek

• 300ml (11/4 cups) gastrique
• Gastrique is caramelised sugar, deglazed with vinegar or other sour liquids, and used as a sweet and sour flavoring for sauces.
• 300ml (11/4 cups) fish stock
• 300ml (11/4 cups) whipped cream
• 300g (1 1/3 cup) butter
• 10g (21/2 tps) dashi powder
• 1 tablespoon (8g) of powdered sugar