Preheat your oven to 350°F (175°C) and line your baking sheets with parchment paper.
In a large mixing bowl, combine the cubed unsalted butter, granulated sugar, and brown sugar. Using an electric mixer, beat them together until the mixture is light and fluffy, about 2-3 minutes.
Next, add the chopped hard-boiled eggs and vanilla extract to the butter and sugar mixture. Mix until well combined.
In a separate bowl, whisk together the all-purpose flour, salt, and baking soda. Gradually add the dry mixture to the wet ingredients, mixing until just combined.
Gently fold in the semi-sweet chocolate chips and toffee bits, ensuring they are evenly distributed throughout the cookie dough.
Using a cookie scoop or tablespoon, scoop out portions of the dough and place them onto the prepared baking sheets, leaving some space between each cookie.
Bake in the preheated oven for 10-12 minutes, or until the edges are lightly golden and the centers look slightly underbaked. They will continue to cook while cooling.
Allow the cookies to cool on the baking sheets for a few minutes before transferring them to a cooling rack. Once cooled, enjoy your Amazing Hard Boiled Egg Chocolate Chip Cookies with a glass of milk or your favorite beverage!
