Vegetables thoroughly wash, cleaned, peeled and cut into chunks. Place the vegetables in a saucepan and pour water enough to cover them. Add salt is (about 1 level teaspoon of salt should be sufficient) and cook until soft potatoes. Must be able to safely drive a fork in the potatoes. In a food processor or blender Strain well cooked vegetables, and adding the butter. Add broth and in which mumbo vegetables. Stir until a homogeneous mixture. Returns creamy potato soup in the pot back on the stove. Add wine and oregano and boil gently for 5 minutes. Before serving, can be seasoned, and to adorn each bowl before serving with fresh oregano.