• 4 herrings (cleaned) or substitute fresh sardines
• 2 cooked beetroots, cubed!
• 1 apple, cubed
• 1 gherkin, cubed
• 1 red onion, cut in rounds
• 1 tbsp mustard seed roasted
• 1 tbsp quality mayonnaise
• 125 ml (approx 4 fl oz/⅔ cup) sour cream & white pepper

Combine all ingredients & marinate for 24 hours serve with rye bread