1) Soak walnuts in hot water for five minutes in a bowl. Rinse and cover with cold water and a pinch of salt.

2) Let stand for a few minutes (it can soak for as long as half a day and will get even better with longer soaking). Rinse and drain.

3) Cut your watermelon into cubes or use a spoon to scoop out the red flesh and put in a bowl.Cube or crumble the cheese over the watermelon.

4) Add the walnut pieces and garnish with mint leaves.Put your nigella seeds in a small pan and toast briefly on medium heat until fragrant.

5) Sprinkle seeds on the salad and enjoy!