01 -  Preheat oven to 350°F. Line a muffin tin with 12 paper liners. 
 02 -  Combine diced apple with lemon juice, brown sugar, and cinnamon in a bowl. Set aside. 
 03 -  In a large bowl, whisk flour, baking powder, baking soda, salt, and cinnamon. 
 04 -  In a separate bowl, blend melted butter, granulated sugar, eggs, and vanilla until smooth. Stir in the cooled sweet tea. 
 05 -  Add wet ingredients to dry and mix until just combined. Gently fold in the prepared apple mixture. 
 06 -  Fill muffin liners halfway with batter. Place one caramel candy in the center of each, then cover with remaining batter. 
 07 -  Mix granulated sugar and cinnamon together. Sprinkle evenly over tops. 
 08 -  Bake for 18 to 20 minutes, or until a toothpick inserted away from the caramel center comes out clean. 
 09 -  Cool muffins in the tin for 10 minutes. Insert a popsicle stick into the center of each muffin while still slightly warm. 
 10 -  Transfer muffins to a wire rack and cool completely before serving.