Rosti-filled Onions

Total Time: 1 hr 40 mins Preparation Time: 15 mins Cook Time: 1 hr 25 mins

Ingredients

• Servings: 4
• 4 large onions, sliced into quarters, keeping root intact
• 2 tablespoons olive oil
• 2 large potatoes, grated
• 3 tablespoons coarse grain mustard
• 25 g butter
• 75 g vegetarian gruyere cheese, grated

Recipe

• 1 heat oven to 200°c
• 2 place the onions on a baking tray, brush with olive oil, season, then cook for about 1 hr until golden and tender.
• 3 meanwhile, mix the potato and carrot together, then stir in the mustard and seasoning. divide the mixture between the onions, then dot the top of each one with a little butter.
• 4 return the onions to the oven and cook for 15 mins until they are tender. sprinkle with the cheese, then cook for a further 5 mins until the topping is golden and bubbling.