Special sweetcorn and tuna salad with sumac

WHAT? 100g. sweetcorn 1 small cucumber chopped in cubes 1 tomato in cubes Bunch of rocket 2 garlic cloves 1 red pepper 1 spring onion 5-6 olives without the stone For the sauce 2-3 tablespoons extra virgin olive Half lemon juice 2-3 basil leaves 1 teaspoon Greek yoghurt 1 teaspoon French mustard 1 teaspoon sumac Salt, pepper, oregano HOW TO? 1️⃣Mix the ingredients for the sauce in a chopper. 2️⃣Chop the vegetables and mix in salad. 3️⃣Add the sauce.