Ingredients
Equipment
Method
- To make the crust, combine flour and diced cold butter in a large bowl. Work the butter into the flour using a pastry blender or your fingers until the dough looks shaggy with some marble-sized butter pieces remaining.
- Make a well in the center, add the cold sour cream, and mix with a spatula. Knead the dough a few times by hand until it just comes together into a ball. Do not overwork.
- Shape into a rough disk, wrap tightly in plastic wrap, and refrigerate for at least 2 hours or overnight.
- For the filling, heat high-heat oil in a large Dutch oven over high heat. Pat beef pieces dry with paper towels. Sear the beef in batches until deeply browned on all sides, about 3-4 minutes per side. Remove and set aside.
- In the same pot, add the quartered mushrooms and cook over medium-high heat until softened and their liquid has evaporated, about 8 minutes. The pot should look fairly dry.
- Stir in the flour, tomato paste, fresh thyme, minced garlic, salt, and pepper. Cook for 30 seconds, stirring constantly, until the tomato paste turns a rusty, brick-red color.
- Deglaze the pot with beef broth, Guinness, and sugar, scraping up any browned bits from the bottom with a wooden spoon.
- Return the seared beef and any accumulated juices to the pot. Bring to a boil, then cover with a tight-fitting lid.
- Transfer the covered pot to a 300°F (150°C) oven and braise until the meat is fork-tender and the sauce has thickened, about 1.5 to 2 hours. Check at 90 minutes. Taste and adjust seasoning. Let cool completely.
- Preheat oven to 400°F (200°C). Divide the chilled filling into six 8-ounce ramekins or one large pie dish.
- Roll the chilled pastry on a lightly floured surface until about 1/8 inch thick. Cut circles slightly larger than your ramekins.
- Place a pastry circle on top of each filled ramekin, pressing gently around the edges. Brush with beaten egg wash and cut a small slit in the center of each crust to vent steam.
- Place ramekins on a baking sheet and bake on the lowest oven rack for 30-35 minutes until the crust is deeply golden brown. Let cool for 5-10 minutes before serving.
Notes
Storage: Baked pot pies can be refrigerated for up to 3 days covered with foil. Reheat at 350°F for 15-20 minutes. Unbaked assembled pot pies freeze for up to 3 months wrapped tightly. Bake from frozen at 375°F for 45-50 minutes.
Make-ahead: The filling can be made up to 2 days ahead and refrigerated. The crust dough can be refrigerated for up to 3 days or frozen for 1 month.
Substitutions: Use any dry stout or porter instead of Guinness. For alcohol-free, use beef broth plus 1 tablespoon balsamic vinegar. Store-bought puff pastry can replace homemade crust. Beef sirloin can be used but reduce braising time to 1 hour.
Variations: Add diced carrots and celery with the mushrooms. Add 1 tablespoon Worcestershire sauce to braising liquid for extra umami. Use one large 9-inch pie dish instead of ramekins and bake for 40-45 minutes.
Tips: If sauce is too salty after reducing, add water to balance. Ensure butter and sour cream are very cold for flakiest crust. Don't stretch dough when placing over ramekins.
