Preheat oven to 350. Place all the cookie base ingredients into a food processor and pulse until they start to mix together. It will not all blend together but will make small clumps when ready. Press into a 9 X 13" pan that has been sprayed with non-stick spray. Bake at 350 for 20 minutes or until lightly golden brown.
While the crust is baking, make the caramel filling. Combine all the caramel ingredients except vanilla in a non-stick pan and heat over medium-high heat. Stir constantly until it comes to a boil. The butter will separate but later incorporate into the mix. Reduce heat and simmer for about 6-8 minutes while constantly stirring. Great arm workout! Remove from heat and add vanilla. Pour over the cookie crust and refrigerate until the caramel layer is cold and firm.
Melt the chocolate chips and butter in microwave, or over double boiler, and spread over cooled caramel layer. I think I might try melting peanut butter chips or making a peanut butter sauce and spread over the caramel and top with chocolate next time! Or try a layer of white chocolate....