Gourmet Pulled Pork Sheperd’s Pie

Ingredients

• 4.4 lbs. 2 kg Quebec pork picnic shoulder (remove rind)
• 2 tbsp. 30 ml olive oil
• 3 Italian (plum) tomatoes, diced
• 1 yellow onion, chopped fine
• 2 cloves garlic, chopped fine
• 1/2 cup 125 ml ketchup
• 1/4 cup 60 ml white balsamic vinegar
• 1/4 cup 60 ml maple syrup
• 1 tbsp. 15 ml soy sauce
• 1 tbsp. 15 ml molasses
• 1 tbsp. 15 ml Worcestershire sauce
• 1 tsp. 5 ml dry mustard
• 1/2 tsp. 2.5 ml Italian spices
• 2 cups 500 ml vegetable stock
• 2 large Russet potatoes, peeled and diced
• 2 medium celeriac roots, peeled and diced
• 3 tbsp. 45 ml butter
• 2 tbsp. 30 ml milk
• 2 1/2 cups 625 ml corn kernels
• 1 1/2 cups 375 ml grated sharp cheddar
• 1 cup 250 ml grated emmental cheese
• Dried parsley to taste
• Salt and fresh ground pepper to taste