Four & Twenty Blackbirds' Black Bottom Oatmeal Pie - KAT'S CLEAN KITCHEN

Ingredients

• 1 1/4 cups unbleached all-purpose flour
• 1/2 teaspoon kosher salt
• 1 1/2 teaspoons granulated sugar
• 1/4 pound (1 stick) cold unsalted butter, cut into 1/2-inch pieces
• 1/2 cup cold water
• 2 tablespoons cider vinegar
• 1/2 cup ice
• 1 1/2 cups rolled oats
• 1/4 cup heavy cream
• 4 ounces bittersweet chocolate (we use 70%), chopped into 1/4-inch pieces
• 3/4 cup packed light brown sugar
• 1/4 teaspoon ground ginger
• 5 tablespoons unsalted butter, melted
• 1 cup dark corn syrup
• 1 teaspoon vanilla extract
• 2 teaspoons cider vinegar
• 4 large eggs