, peeled and cut into 1/2-in. cubes
, cut into 1/2-in. cubes
1/2 450-g pkg
PREHEAT oven to 400F.
STIR cornstarch with 1/4 cup apple cider in a small bowl. Set aside.
COMBINE sweet potato with remaining cider and onion in a pot. Boil, covered, until potato is tender, 12 to 15 min.
STIR cornstarch mixture and add to pot along with cream, Dijon, sage and salt. Stir often, until sauce thickens, 2 to 3 min. Stir in cubed turkey breast and peas.
SCRAPE turkey filling into a 9×13-in. baking dish. Top with puff pastry, stretching dough to cover dish. Using the tines of a fork, press edges of dough against rim of dish, or fold into the sides. Brush egg yolk over pastry. Cut several slits in the top to let steam escape.
BAKE in centre of oven until crust is golden-brown, 15 to 20 min.