Chicken thighs in tomato sauce

Ingredients

• 4 chicken thighs
• 1 onion
• 3 cloves of garlic
• 400 g of tomato puree (or canned tomatoes)
• 1 tablespoon of tomato concentrate
• 1 teaspoon of sugar (if necessary, to balance the acidity of the tomatoes)
• 1 bay leaf
• 1 teaspoon of dried oregano or thyme
• 1 tablespoon of olive oil
• salt
• pepper
• fresh basil or parsley for garnish
• 200 g of corn semolina (polenta)
• 800 ml of water or vegetable soup base
• 1 tablespoon of butter
• 50 g parmesan cheese (optional)
• salt to taste