1 (11-ounce)bag(312g)caramel bits or soft caramels, unwrapped (see note)
1 (14-ounce)cansweetened condensed milk
2tablespoonsbutter
1teaspoonextract vanilla
Coarse kosher salt
Topping:
1cup(170g)white chocolate chips
1cup(170g)semisweet or bittersweet chocolate chips (ok, you can use milk chocolate chips if you have to)
1cup(170g)Heath toffee bits
1cup(120g)chopped pecans
Instructions
Preheat the oven to 350 degrees F. Line a metal 9X13-inch baking pan with foil and lightly grease the bottom and sides with nonstick cooking spray.
In a large bowl with a handheld electric mixer (or in the bowl of a stand mixer fitted with the paddle attachment), cream together the butter, sugar, and vanilla until light in color, 1-2 minutes. Add the flour and salt; mix until combined. Reserve one cup of the mixture and reserve to use later. Press the rest of the dough into the bottom of the prepared pan. Bake for 8-10 minutes until just set and very lightly golden on the edges.
While the crust bakes, place the unwrapped caramels in a microwave-safe bowl. Add the sweetened condensed milk and butter. Microwave for 1-minute intervals, stirring in between, until the caramel mixture is melted and smooth. Stir in the vanilla and a pinch of coarse, kosher salt. Drizzle across the crust and spread evenly (it's ok if the crust is still warm).
Sprinkle the white chocolate chips, semisweet chocolate chips, toffee bits and pecans over the caramel layer. Crumble and drop the remaining dough over the top. Return the pan to the oven and bake for about 20-25 minutes until the caramel is bubbling and the edges are lightly golden.
Cool completely in the pan before cutting into squares.
Notes
Caramels: my favorite storebought caramels to use in recipes like these are Trader Joe's but the Kraft brand works great, too (I haven't tried other brands in this recipe). Caramel Sauce: don't use caramel sauce as it will be too thin for the bars.