Pre-heat oven to 350 degrees; line a 9x9 inch pan with parchment paper with edges coming up the sides and set aside
In a medium bowl, whisk together flour and baking soda, set aside
Using a mixer, in a large bowl beat peanut butter, butter and sugars on high until light and fluffy
Beat in the eggs and vanilla until combined
Reduce speed to low and stir in flour mixture just until combined
Stir in peanut butter chips
Wrap half of dough with seran wrap and place in refrigerator; press remaining dough into bottom of prepared baking pan and bake for 15 minutes
Remove from oven and immediately sprinkle chocolate chips over top; let sit for ~6 minutes and then carefully spread chocolate chips so that the cookie dough layer is mostly covered
Pour salted caramel over chocolate
Take chilled dough out of fridge and drop tablespoon-sized chunks of dough over top
Place baking pan back in oven for 25 minutes or until top is lightly browned
Allow to cool completely before removing from pan and cutting
Notes
Store covered at room temperature for up to 3 days or freeze wrapped well in tin foil for up to two months
Recipe by Keep It Sweet Desserts at http://www.keepitsweetdesserts.com/peanut-butter-caramel-bars/