Pate Maison Ala Silver Palate

• 4 peppercorns (whole)
• 2 celery ribs with leaves
• 1 garlic clove
• 1/4 calvados
• 1,400 ml water
• 1,400 ml water in a saucepan
• 55 gr currants (dried)
• 30 gr roughly onion (chopped)
• 10 ml dry mustard
• 3 gr salt