Gravlax with mustard-dill sauce

Ingredients

• 1 side of salmon fillet, approximately 800g, with skin
• 2 tbsp coriander seeds
• 2 tbsp fennel seeds
• 1 tsp peppercorns
• 4 tbsp coarse salt
• 3 tbsp granulated sugar
• 3 tbsp wodka
• 1 lemon, the zest
• 1 orange, the zest
• handful fresh dill, coarsely chopped
• 2 tbsp fresh parsely, coarsely chopped
• 1 lemon
• 8 tbsp olive oil
• 2 tbsp dijon mustard
• handful fresh dill, finely chopped
• 1 tbsp honey
• 1 lemon, juiced
• salt