01 -
Spray the bottom of the slow cooker with nonstick spray, coating it well.
02 -
With a mixer, beat together butter, sugar, and vanilla until well combined.
03 -
Add egg and salt to the mixture and mix until incorporated.
04 -
Add flour one cup at a time and mix until a soft dough forms.
05 -
Sprinkle a bit of flour over the dough and use your hands to form it into a ball.
06 -
Use a little over half of the dough and press it evenly onto the bottom of the slow cooker. Sprinkle flour as needed to prevent sticking.
07 -
Evenly sprinkle the bag of caramel bits over the crust.
08 -
Crumble the remaining dough over the caramel layer.
09 -
Sprinkle sea salt evenly over the crumbled dough layer.
10 -
Cover and cook on low for 2-3 hours. The bars are done when slightly browned around the edges and a knife inserted into the center comes out mostly clean.
11 -
Let the cookie bars cool completely in the slow cooker before removing. Serve at room temperature.