Cut the turkey breast into cubes, but not too big, to cook faster. Clean the mushrooms and slice them, but left the little ones whole. The leek, after cleaned it, cut it in half, then sliced it thinly.
Heat about four tablespoons of sunflower oil in which we will fry the chopped leeks. Fry for about two to three minutes, then add two tablespoons of sweet pepper paste. Stir and fry for another minute, after which we can add the turkey meat. Season and add a glass of warm water, put the lid on and let it boil for about 20-30 minutes, over medium heat.
Add the mushrooms, stir, put the lid on and boil everything for another 15 minutes. The mushrooms will also leave water in them, but I added a glass of warm water to have more juice.
Make the thickener from wheat flour and single cream. We have to equality the temperatures by putting a ladle of hot stew stock over the thickener. Mix and pour everything into the pot, over the stew. Boil for another five minutes to cook the wheat flour in the thickener, and put a tablespoon of chopped green parsley.