Name: Roasted stuffed onions with bacon and herbs
Prep time: 30 min
Cook time: 120 min
Yield: 6
Cuisine: British
Ingredients: 6 large (about 1.8kg) yellow onions; 15g unsalted butter, plus extra for buttering the dish; 2 tsps Dijon mustard; 80g Gruyere cheese, grated; 65ml double cream; 65ml white wine; 1/8 tsp salt, plus extra to taste; Pinch sugar; Freshly ground black pepper, to taste; 1 sprig fresh sage; 1 sprig fresh rosemary; 1 sprig fresh thyme; 4 rashers (about 80g) streaky bacon, diced; 35g fresh breadcrumbs