Brussel sprout coleslaw with mustard, maple and horseradish dressing

Ingredients

• 8-10 sprouts finely sliced
• ½ red onion finely sliced
• ¼ red cabbage finely sliced
• ¼ white cabbage finely sliced
• 2 carrots grated
• 5 tbsp mayonnaise
• 2 tbsp wholegrain mustard
• 1 tbsp Dijon mustard
• 1 tbsp maple syrup
• 2 tbsp freshly grated horseradish (or the best quality jarred horseradish)
• Grated zest of 1 clementine
• 1 Handful of freshly chopped parsley
• 2 tbsp chopped chives
• Juice of 1 lemon
• Salt and pepper to season