Preheat the oven to 350F and line a baking sheet with parchement paper and set aside.
Cream the softened butter and brown sugar together until light and fluffy.
Mix in one egg and the vanilla butter emulsion.
Add in the flour, salt, and baking soda and mix to combine. Make sure to stop mixing as soon as the flour. mixture disappears to avoid overmixing. Fold in the chocolate chips and toffee bits.
Using a large cookie scooper, scoop out 9 large cookie dough balls, place them on the prepared baking sheet, flatten to about 1 inch in thickness, and bake for 11 minutes. Top with more chocolate chips as soon as they come out to get beautiful drool-worthy cookies, and sprinkle with coarse sea salt.
Let the cookies cool down on the baking sheet for 10 minutes before transferring to a cooling rack. Let cool completely and enjoy!