Start with the salsa. Get a medium sized bowl. Mix the sliced red onion with the lemon zest, lemon juice, chopped chilli and grated ginger. Mix the cranberries. Stir in the olive oil. Add the sliced basil then season to taste with salt, sugar and black pepper.
Mix half the salsa with the spelt. Season to taste then spread it over a large platter. Top with the sliced turkey. Toss the watercress with the apple and walnuts and scatter them over the top. Finally spoon the salsa over everything and serve.