Peel and quarter the carrots. You can decide the thickness yourself. Then bring the broth to the boil, add the vinegar and sugar. Taste, it should taste sweet and sour. Add the carrots and cook until al dente.
Put the carrots in a bowl. Add the olive oil to the brew and stir well. Cut the mint into small pieces and add to the stock, then pour everything over the carrots and let cool.