Preheat the oven at 350°
Melt the butter in the microwave for 30 seconds.
Separate the yolk from the egg. You would have 1 whole egg and 1 egg yolk.
Mix butter, brown sugar & granulated sugar for approximately 3 minutes- the goal is to have a creamy consistency - depending on the power of your mixer/beater and the temperature of the butter it can take anywhere between 3-5 minutes.
Mix in the egg, egg yolk and vanilla extract.
Slowly mix in the dry ingredients (all-purpose flour, cocoa powder, baking soda, baking powder, and salt). Tip: Sift the all-purpose flour and cocoa powder to break up any chunks the flour and powder may have.
Hand mix in the chocolate-covered candy and white chocolate chips.
Roll the chilled dough into balls- scoop 3 tablespoons of the dough and roll into balls or weigh the cookie dough balls to approximately 60-65 grams by using a food scale.
Place the dough balls 2 inches apart on the cookie baking sheet. Bake the cookies for 10-12 minutes or until golden brown edge appears.
Bonus Step: Do a little dance while you enjoy the goodies you made.