Savory Shepherd'S Pie

Ingredients

• 4 medium russet potatoes, peeled and cut in chunks
• 1 medium celery root, peeled and cut in chunks (celeriac)
• 1/2 cup cheddar cheese, grated
• 2 tablespoons butter
• 1/4 cup milk
• 1 lb ground pork
• 3 tablespoons butter
• 3 large carrots, chopped
• 2 medium parsnips, chopped
• 1 medium leek, white part chopped
• 1 small fennel bulb, chopped
• 1 cup frozen peas, thawed
• 1/8 cup unbleached all-purpose flour
• 1/3 cup sherry wine
• 1 cup low sodium chicken broth
• 1/2 teaspoon sea salt (to taste)
• 1 teaspoon fresh ground black pepper (to taste)
• 1/4 teaspoon ground coriander (to taste)
• 1/4 teaspoon curry powder (to taste)