Creamy Spelt Mushroom & Leek Pie – A Hearty Vegetarian Classic

Ingredients

• 250 g, Wholegrain Spelt Flour
• 125 g, Cold Unsalted Butter
• 1 Medium, Egg
• 2 tbsp, 2–3 Cold Water
• ½ tsp, Fine Sea Salt
• 1 tbsp, Olive Oil
• 1 Large, Leek
• 2 cloves, Garlic
• 300 g, Mushrooms
• 1 tsp, Dried Thyme
• 1 tbsp, Plain Flour
• 150 ml, Vegetable Stock
• 100 ml, Double Cream or Oat Cream
• Salt and Black Pepper
• 1 Egg, beaten