Preheat oven to 350 degrees. Line a baking sheet with foil.
Stir together slightly softened butter, sugar, brown sugar together.
Add egg and vanilla extract. Stir until well combined.
Add in baking soda and flour. Continue to stir until well combined.
Fold in chocolate chips, chocolate chunks and toffee bits.
Use a cookie scoop and place on the prepared baking sheet.
Bake for 10-12 minutes until golden brown.
Remove from oven and sprinkle with sea salt.
Let sit for 2 minutes and then remove to a cooling rack.