Iskender Kebab Recipe

Name: Iskender Kebab Recipe
Ingredients: 300 grams entrecote (marinated, very thinly sliced); 150 grams pitta bread; 1 tablespoon natural Turkish yoghurt; 4 thin green peppers; 2 tablespoons olive oil (1 for marinade, 1 for frying ); pinch dried oregano; 1 medium tomato (finely chopped); 1 clove garlic (peeled & grated); 1 dessert spoon tomato paste; 1 tablespoon olive oil; 1 teaspoon vinegar; 1 pinch chilli flakes; 400 millilitres water; 2 tablespoons butter (melted & sizzling, to finish ); salt & pepper (to season)