Mushroom and white wine cream sauce

Name: Mushroom and white wine cream sauce
Prep time: 15 min
Total time: 15 min
Yield: 4 porties
Cuisine: Belgian
Ingredients: dried porcini mushrooms; water; fresh portobello mushrooms; unsalted butter; eschalots; dry white wine; Chicken stock paste; pouring (whipping) cream; plain flour; salt