Boozy Apple Cider

In a Crock-Pot, combine apple cider, whiskey, cinnamon sticks, and caramel. Cook on low until warmed through, about 2 to 3 hours. Make apple cups: Slice off the top of each apple. Use an apple corer to remove the inside of the apple until you’re about 1/2" from the bottom of the apple. Squeeze lemon juice inside the apple cups to prevent apples from browning. Ladle hot cider into apple cups. Garnish with cinnamon sticks, and serve immediately.