Line a cookie sheet with wax paper and lightly spray paper with cooking spray. Sprinkle 2 cups pretzels on waxed paper
Melt 2 cups chocolate chips in microwave for 30 seconds, stir. Repeat at 15 seconds intervals until melted
Spread on waxed paper with desired thickness
Place in freezer for 7 minutes
Melt caramel according to package directions
Spread caramel on top of hardened chocolate and sprinkle remaining pretzels on top
Place in freezer for 10 minutes
Melt remaining chocolate and spread on top of caramel/pretzels. Sprinkle with Sea Salt, as desired. Place in fridge for 30 minutes. Break into pieces and enjoy!