Preheat your oven to 350 F.
Mix your crust ingredients together in a bowl until a dough forms.
Flatten it into a parchment lined 9 x 5 loaf pan. Bake the crust for 12-15 minutes, until it starts to brown. Remove from oven and let cool while you prep your filling.
Whisk together the peanut butter, maple syrup and coconut oil to make the caramel. *If your peanut butter is nearing the end of the tub and isn't smooth, I suggest blending it with the maple syrup. and coconut oil for a creamier caramel!
Gently spread it over the crust with a spatula. Be sure not to spread too hard because the crust will break apart!
Top the peanut butter caramel layer with the crushed pretzels and place the bars in the freeze for 1 hour.
After an hour, remove from freezer. Melt your chocolate chips in 30 second increments in the microwave until smooth. Pour the chocolate over the pretzel layer.
Top with sea salt and a few extra crushed pretzels. Place back in freezer to set for 10-15 minutes.
Remove from freezer and slice into 12 bars.
Keep stored in freezer for up to 3 months, or refrigerate for 2 weeks. For a softer caramel texture, refrigeration is recommended!