Preheat oven to 350°F

In a medium size mixing bowl, mix brownie mix and flour together to combine. 

In a separate bowl, whisk eggs until frothy. This will give you a lighter cookie. 

Make a well in the dry ingredients and add the oil and water. Fold in the eggs. Mix until combined.

Fold in the toffee bits to combine.

Drop batter 2 inches apart onto a cookie sheet lined with parchment paper using a teaspoon.

Bake for 9 to 10 minutes. Once the cookies have lost their gloss but are still a bit soft in the middle they are done. Take care not to over bake these chewy little gems.