Creamy Country Style Chicken Pie

Ingredients

• 1 tablespoon extra virgin olive oil
• 2 tablespoons butter
• 2 leeks, finely sliced
• 3 garlic cloves, finely chopped
• 3 celery ribs, split down the middle, finely diced
• 1 1/2 kg chicken thighs, sliced into 4cm chunks
• 4 tablespoons plain flour
• 1/2 cup chicken stock
• 1/2 Simply Wholesome Pantry Creamy One Pot Recipe Base
• 1 cup creamed corn (canned)
• 1 cup frozen diced vegetables (corn, carrot, peas), thawed
• Sea salt
• Pepper
• 2 sheets of shortcrust pastry, thawed
• 2 sheets puff pastry, thawed
• 1 egg, lightly whisked