Raghavan Iyer's Potato Leek Pie · Faith Middleton's Food Schmooze

Ingredients

• 1 cup unbleached all-purpose flour (plus more for rolling)
• 1/2 teaspoon coarse sea or kosher salt
• 4 ounces cream cheese (chilled)
• 8 tablespoons (1 stick) unsalted butter (chilled)
• 3 tablespoons ice water
• 1 teaspoon white distilled vinegar
• 1-1/2 pounds red potatoes
• 1 pound leeks (beards and tough dark green leaves trimmed)
• 2 tablespoons unsalted butter
• 1/4 cup finely chopped thyme leaves
• 1 teaspoon coarse sea or kosher salt
• 1 teaspoon coarsely cracked black peppercorns
• 1/2 cup shredded cheese ((such as Gruyère, mozzarella, sharp cheddar, Havarti, or a blend))
• Creamy Jalapeño Sauce (for serving (see headnote for link))