Preheat the oven to 400 degrees. Combine the butter, brown sugar, and white sugar. Mix until creamy. Add the eggs and mix until combined.
Add the cocoa powder, flour, cornstarch, salt, and baking soda. If you live at a high altitude, you will need the full 2 cups of flour. If you are at a low elevation, start with 1 3/4 cups. If the dough is sticky, gradually add more.
Add the coconut extract, coconut, and toffee bits. Mix until everything is evenly dispersed. Using a 2 inch cookie scoop, scoop up to 6 dough balls onto a baking sheet. Bake them at 400 for 8-10 minutes, until the outside of the cookies has set. Enjoy!!
