Lay your pretzels on a lined baking sheet and put one chocolate caramel on top of each one. Put them into the oven for 3-5 mins at 180 degrees or until the caramels are soft. Press another pretzel on to the top of each caramel. You should have a sandwich of pure joy.
They can take a while to harden. As I'm usually preparing these about 15mins before I leave to go to book club, I put them into the freezer for 10 minutes. Once they are hard they slide off the baking paper no problem.