Heat your olive oil in a cast iron deep skillet, and add onions. Sauté for 1 minute. Add in your carrots, potatoes, and sauté for 2 minutes. Then mix in your flour, and stir in chicken broth and spices. Mix all but the 2 Tablespoons of milk and cream in separate bowl.
3 Cups of Chicken Breast, 1 Cup of Carrots, 2 Potatoes, 1 tablespoon of Flour, ½ Cup of Milk, 1 Onion, 1 teaspoon of Oregano, 1 teaspoon of Thyme, 1 teaspoon of Salt for Taste, Dash of Olive Oil, 1 teaspoon of Black Pepper for Taste
Continue to mix, and slowly add in 6 Tablespoons of hot chicken broth into mixture in order to raise the temperature of the milk and cream.
2 Cups of Chicken Broth
Pour creamy mixture into skillet, and mix with carrots, potatoes, bring to boil.
Cover pot, simmer for 20 minutes, cool. Preheat oven to 425 degrees.
Whisk egg with 2 Tablespoons milk.
1 Egg
Roll out the puff pastry on lightly floured working area. Place your sheet of puff pastry over skillet. Allow pastry to hang over the sides of the skillet. Make a few vent holes to let the steam out while cooking.
1 Sheet of Puffy Pastry
Place into your oven, and bake for 30 minutes or until pastry is a lovely golden brown color. Remove from oven, cool and serve with a light green salad to balance the richness of the potpie. Enjoy.