Avocado Salad with Smoked Salmon

I am Danish - and it doesn't get much more traditional than this.

2 avocados
150g Smoked Salmon

Dressing:
2 tbsp Dijon Mustard
2 Tbsp Sunflower oil
100 ml cold water
Black Pepper

Mix oil and mustard; stir in water for the dressing.  Cut avocado in half.  Peel and remove stone.  Cut meat of the avocados into thin slices; arrange on plates.  Pour dressing over avocado and place salmon, cut into small pieces over top.  Garnish with freshly ground black pepper.  Serve with thin slices of toasted rye bread.