Clam Stew With Shiitakes, Cinzano, Chorizo

• 24 littleneck clams
• 1 onion in (red)
• 1 baguette
• 1 bunch thyme
• 1/2 dice
• 1/2 shiitakes
• 1/2 chorizo thinly (cooked sliced)
• 1/2 cinzano rosso sweet vermouth
• 350 ml basic tomato sauce
• 300 ml dry wine (red)