Heat the pizza stone on the braai.
Spread the sour cream/crème fraîche over the wraps. Divide the pieces of salmon over wraps and divide the onions and capers / green olives around it. Drizzle with lemon juice.
Heat the wraps for 5 to 10 minutes on the pizza stone, with the lid on the braai.
Serve the wraps with some rocket.
Tip: Never immerse the pizza stone in water, but wipe it clean with a damp cloth.