Melt the Spreadable in a large frying pan over medium-high heat. Add the leek and garlic and sauté for 2-3 minutes or until the leeks are softened. Add mushrooms and thyme. Cook for 5 minutes, stirring gently so as to not break up mushrooms

Combine stock with the cornflour and stir into mushroom mixture. Cook over medium heat for a further 3-4 minutes or until the sauce has thickened slightly. Fold through the spinach and remove from heat. Season to taste with salt and pepper

Combine the milk and stock in a medium heavy-based saucepan over high heat and bring to the boil. Reduce heat to medium and gradually add the polenta, stirring constantly. Cook, stirring constantly, for about 3 minutes or until the polenta is soft and smooth. Remove from heat and stir in the Spreadable and parmesan

To serve, spoon the creamy polenta onto serving plates and top with the mushroom ragu. Scatter with a little extra parmesan and the parsley