Begin by grilling the peaches. Sprinkle the inside of the peaches with 2 teaspoons of sugar. Use the olive oil to lightly brush the grill grate to keep the peaches from sticking. Place the peaches, inside facing down, over indirect heat on a wood or charcoal grill and over medium low heat on a gas grill. Allow to cool until light charred grill marks appear on the peach. Remove and allow the peaches to cool slightly before cutting them in half so that you have eight peach quarters. Set aside.
In a large pitcher, stir together the sugar, iced tea, Hangar 1 Straight Vodka, lemon juice, and vanilla extract until the sugar has completely dissolved. Add the peaches and stir to agitate slightly. Cover and place in the refrigerator, allow the flavor to infuse for at least 2 hours or overnight.
When you’re ready to serve the spiked iced tea, uncover the pitcher, stir, add ice, and distribute. Serves 4.