Preheat oven to 325 degrees.

Grease a 13 by 9-inch baking pan well with cooking spray; line with parchment paper; set aside.

Melt the butter in a medium saucepan over medium-high heat. Add the chocolate chips and stir until melted.

Remove from heat; add the brown sugar and vanilla and stir until mixture is smooth.

Whisk in the eggs. Add the flour and salt. Stir until combined.

Combine white chocolate chips, chopped pecans and toffee bits; measure out 1/4 and set aside (or add all of them if desired eliminating using some on top of the dough).

Stir in the add-ins mixture and pour the dough into your greased and lined baking pan. Sprinkle with the set aside add-ins and lightly press those ingredients into the dough.

Bake 30-34 minutes (start checking at 25 minutes if you like your brownies like I do) or until toothpick inserted into the center comes out with moist crumbs.

Store any leftovers in airtight container for 3-4 days and Enjoy!