Vegetarian Bourguignon

Name: Vegetarian Bourguignon
Prep time: 20 min
Cook time: 40 min
Total time: 1 h
Cuisine: French
Ingredients: 5 tablespoons olive oil; 5 pounds baby Bella mushrooms (dirt removed, halved and stem removed); ¾ cup pickled pearl onions; 2 tablespoons flour; 4 cups mushroom stock ( vegetable stock); 3¼ teaspoons corn starch (or agar-agar ); 1½ cup red wine ( Pinot Noir or white wine); 2 tablespoons tomato paste; 4 garlic cloves ( cleaned and minced); 1 tablespoon anchovy paste; 2 tablespoons dried porcini mushrooms; 4 tablespoons parsley ( finely chopped fresh parsley); 2 onions (diced); 2 carrots (peeled and diced); 8 garlic cloves (peeled and end core removed); 8 thyme (sprigs ); 2 bay leaves (dried); 12 black peppercorn; salt and pepper ( to taste)