Preheat Oven: Begin by preheating your oven to 350°F (175°C).
Mix Butter and Sugars: In a large bowl, cream together the softened butter, granulated sugar, and brown sugar until it's fluffy and smooth.
Add Eggs and Vanilla: Beat in the eggs, one at a time, followed by the vanilla extract. Ensure everything is well combined.
Combine Dry Ingredients: In another bowl, whisk together the all-purpose flour, baking soda, and salt.
Mix Everything Together: Gradually add the dry mixture to the wet mixture, stirring until fully incorporated, but be careful not to overmix!
Fold in Toffee Bits: Gently fold in the toffee bits, spreading them evenly throughout the dough.
Scoop and Bake: Use a cookie scoop or spoon to drop dollops of dough onto a lined baking sheet, leaving some space between each cookie. Bake for 10-12 minutes or until the edges are lightly golden.
Cool and Enjoy: Let the cookies cool on the sheet for a few minutes before transferring them to wire racks to cool completely.