Potato and pumpkin gratin | Reader's Digest Australia

Ingredients

• 600 g pumpkin
• 150 ml dry cider
• 300 ml boiling vegetable stock, preferably homemade
• 1 small sprig of fresh rosemary
• 1 large red onion, halved and thinly sliced
• 500 g small potatoes, halved
• 3 beefsteak tomatoes, thickly sliced
• 2 sprigs of fresh oregano, stalks discarded
• salt and pepper
• 1⅔ cups (210 g) grated red leicester cheese
• 1½ cups (120 g) fresh white breadcrumbs