Red onion bangers with kale mash | Sainsbury`s Magazine

Ingredients

• 1kg floury potatoes, peeled and cut into chunks
• 8 of your favourite sausages
• 1 tbsp olive oil
• 2 red onions, sliced
• 2 large sprigs of rosemary, leaves only, finely chopped
• 2 tbsp balsamic vinegar
• 1 tbsp plain flour
• 500ml hot beef stock
• 5 rashers streaky bacon
• 200g chopped curly kale, tough stalks removed
• 1 heaped tbsp crème fraîche or a knob of butter