Start by preheating the oven to 350 degrees Fahrenheit.
Next line two standard (13x18) cookie sheets with parchment paper and set aside.
Begin making the recipe by browning the butter.
Add the butter to a medium saucepan over medium heat and melt the butter, stirring occasionally to avoid burning.
Continue to melt the butter for about 7 minutes until the butter foams and golden brown bits form on the bottom of the pan.
Remove the browned butter from the stove, pour it into a bowl and let it cool for 20 min.
Now find a large mixing bowl and begin to make the cookie dough.
Scrape the cooled brown butter into the bowl along with the brown sugar and mix them together until light and fluffy.
Add the egg, two egg yolks, vanilla extract, molasses and 2 Tablespoons of water to the bowl.
Mix until combined.
Then in a smaller mixing bowl add all-purpose flour, bread flour, salt, baking soda and cinnamon; mix the ingredients together with a fork.
Lightly chop the pecans and toss them into the dry ingredients.
Add 1/2 cup of toffee bits to the dry ingredients too.
Now transfer the dry ingredients into the wet ingredients and with a rubber spatula, fold the two together until the last bit of flour disappears.
Using a large cookie scoop, form cookie dough balls and place no more than 5 cookies on a baking tray at a time.
Bake the cookies for 10-12 minutes at 350 degrees Fahrenheit until the edges are lightly browned but the centers are still soft.
Continue until all the cookies are baked.
Cool the cookies and enjoy.