Chestnut and Mushroom Wellington - Vegan - Vegetarian Recipe

Ingredients

• 1 onion, chopped
• 1 Tbsp oil
• 2 garlic cloves, chopped
• 125g mushrooms, sliced roughly
• 110g cooked chestnuts, chopped (tinned are fine)
• 1 Tbsp lemon juice
• 1 Tbsp soy sauce
• 1/2 tsp marmite
• 110g wholemeal breadcrumbs
• 110g cashews, ground in a blender
• 2 tsp mixed herbs
• 330g vegan puff pastry
• soy milk for brushing