Family Chicken Pie

Ingredients

• 3 Tbsp olive oil (or butter)
• 700g chicken thighs (fat trimmed)
• 1 cup brown onion (finely diced)
• 2 large garlic cloves (minced)
• 1 cup carrot (finely diced)
• ½ cup celery (finely diced)
• 2 Tbsp gluten-free flour
• 1 cup dry white wine (or extra chicken stock)
• 3 cups chicken stock
• ½ Tbsp Dijon mustard
• 4 sprigs fresh thyme
• 1 Tbsp arrowroot starch (tapioca or corn starch also work)
• ½ cup frozen peas
• 2-4 sheets gluten-free puff pastry
• 1 egg (whisked)
• salt & pepper