Chicken thighs with red onion, apple and chestnuts recipe

Ingredients

• 2 tbsp olive oil
• 400 g bone-in chicken thighs (2 or 3 pieces)
• 1/2 red onion, thinly sliced
• 1/2 red apple, thinly sliced
• 30 g cooked chestnuts, roughly chopped (or use unsalted walnuts or hazelnuts)
• 100 g savoy cabbage, finely chopped
• 10 g fresh sage leaves, roughly chopped
• 1 tsp yeast extract spread (e.g. Marmite)
• 1 tsp tomato paste
• 1/2 vegetable stock cube
• 100 ml hot water