INGREDIENTS
6 tbsp
butter, salted or unsalted
1
large onion, chopped
1 1/2 lb
potatoes, peeled and cut into approx. 1-inch cubes (I used new potatoes)
1 lb
(about 6 medium) carrots, cut into approx. 1-inch pieces
10 oz
mushrooms, sliced
1/2 cup
cognac
6 tbsp
all-purpose flour
2 cups
chicken stock
1 cup
milk
5 cups
chicken, cooked (roasted or poached) (Again, I used a whole rotisserie chicken de-boned the last time I prepared this.)
1 cup
fresh or frozen green peas
5 tsp
dried parsley
2 1/2 tsp
dried thyme
1/2 tsp
dried sage
3 tsp
salt
1 tsp
black pepper
1
sheet frozen puff pasty, thawed
1
egg yolk + 1 teaspoon water for egg wash
extra salt and pepper