Mushroom, shallot & squash pie - Good Food Middle East

Ingredients

• 25g dried porcini mushrooms
• 600g shallots, halved
• 1 tbsp olive oil
• 100g butter
• 1 butternut squash, peeled, deseeded and diced
• 2 garlic cloves, finely chopped
• 2 tsp finely chopped rosemary
• 2 tsp finely chopped sage
• 250g fresh mushrooms (such as Portobello or chestnut), sliced
• 50g plain flour, plus a little extra for dusting
• 500ml vegetable stock
• 500g pack puff pastry
• 1 egg, beaten