Prawn rolls - lobster roll with prawns

Ingredients

Sauce :

• 2.5 oz mayonnaise
• juice of 1/2 lemon
• 1 tsp Dijon mustard
• 1 Tbsp fresh parsley
• 1 Tbsp dill
• 1 Tbsp oil
• 1/2 tsp salt
• 1/2 tsp pepper

Sandwich :

• 3.5 oz cooked prawns
• 1/2 cucumber
• 2 green onions
• brioche
• some butter

Preparation

• Combine all sauce ingredients in a bowl and set aside.
• Filling :
  Cut the prawns, green onions and cucumber into small slices.
  In an other bowl, mix them together.
  
• Pour the sauce on top and mix.
• Cut the brioche into large slices. Cut the slice in half but not all the way. We don't want two slices but just one and open it to fill it.
  
• Melt some butter in a hot pan and toast your brioche on the two sides.
• Fill your brioche with your prawn filling and there you are !