Tomato-Braised Sausages on Parmesan Polenta

Ingredients

• 2 tbsp extra-virgin olive oil
• 1 kg chipolata sausages
• 2 Spanish onions, cut into wedges
• 125 ml (½ cup) red wine
• 60 ml (¼ cup) balsamic vinegar
• 2 400gm cans diced tomatoes
• 2 tbsp brown sugar
• 6 sprigs of thyme
• 2 tbsp oregano leaves
• Parmesan polenta
• 800 ml milk
• 300 gm yellow polenta
• 250 ml (1 cup) pouring cream
• 160 gm (2 cups) finely grated parmesan
• 60 gm unsalted butter, at room temperature