Nibblous | mushroom sauce

Ingredients

• 15-20g dried porcini
• 500ml hot water
• 2 tbsp olive oil
• 1/2 onion, finely chopped
• 2 garlic cloves, finely chopped
• 2 tbsp chopped thyme leaves
• 300g mushrooms, sliced
• juice of half a lemon
• 2 tbsp chopped parsley
• 3 tbsp creme fraiche
• salt and black pepper