Line a 9-inch pie plate with the pastry crust.

Refrigerate or freeze the pie crust.

Preheat oven to 450°F.

Whisk together the eggs and 3/4 cup brown sugar in a large bowl until well combined.

Add the maple syrup, melted butter, brewed tea, 2 tablespoons apple cider vinegar, and salt to the egg mixture.

Whisk until the filling is smooth.

Stir in the coarsely chopped walnuts.

Place the pie shell on a heavy baking sheet.

Pour the filling into the prepared pie shell.

Place the baking sheet on the center rack of the preheated oven.

Bake for 10 minutes at 450°F.

Reduce oven temperature to 350°F.

Continue to bake for approximately 25 minutes, or until the center is set.

Cool the pie on a wire rack before serving.

Serve warm or at room temperature.

Enjoy cold if desired.