1 teaspoon
minced fresh thyme, (or ½ teaspoon dried thyme)
1 teaspoon
mustard powder
1 teaspoon
garlic powder
¼ teaspoon
allspice
¼ teaspoon
nutmeg
½ teaspoon
freshly cracked black pepper
1 tablespoon
cornstarch
¾ cup
beef stock
1
Easy All-Butter Pie Crust Recipe, at room temperature or 1 (15 ounce) package prepared double pie crust
1 large
egg, beaten
Method
Preheat the oven to 400°F with a rack in the center position.
Place the potato in a saucepan with enough water to cover by 1 inch. Bring to a boil over high heat and cook, stirring occasionally, until tender, about 10 minutes. Drain and mash.
Meanwhile, heat a large skillet over medium-high heat. Add the beef, pork, onion, and garlic and cook, breaking the meat up with a wooden spoon, until browned and the onion is softened, 8 to 10 minutes.
Stir in the mashed potatoes, Worcestershire sauce, salt, tomato paste, thyme, mustard powder, garlic powder, allspice, nutmeg, pepper, cornstarch, and beef stock. Simmer for 5 minutes, then remove from the heat.
On a lightly floured surface, roll out the pie dough into two 14-inch rounds. Gently press one of the dough rounds into a 9-inch pie plate. Trim the edges if needed. Spoon the filling, including any excess liquid, into the pie crust, forming a slight mound in the center. Top with the remaining dough round, crimping the dough together using the tines of a fork or your fingers to seal.
In a small bowl, mix the egg with 1 teaspoon of water. Brush the top of the pie with the egg wash. Using a sharp knife, cut four 2-inch slits into the top of the crust.
Bake until the crust is a deep golden brown and the filling is bubbling, about 35 minutes. If the crust begins to brown too quickly, loosely tent with foil. Let cool for 5 to 10 minutes before serving.