Creamy Chicken Pot Pie

INGREDIENTS

2 lb (900g) boneless, skinless cooked chicken, shredded

Salt and freshly ground black pepper,

4 tbsp

unsalted butter, at room temperature

4 tbsp

all-purpose flour

2 cups

chicken broth, good-quality

1/2

lb potato, cut into small cubes

medium yellow onion, peeled and diced

2 cloves

garlic, minced

1/2

cup carrot, peeled and cut into small cubes

1/2

cup frozen pea or shelled fresh peas

1/2

cup frozen or fresh corn

1/2 cup

chopped green beans, fresh or frozen

Cayenne pepper, optional,

2 tbsp

heavy cream

good quality puff pastry sheet, thawed

egg, beaten