Preheat your oven to 350°F (175°C). This ensures your cookies bake evenly.
In a large mixing bowl, cream together the softened unsalted butter, granulated sugar, and light brown sugar until light and fluffy, about 2-3 minutes.
Beat in the eggs one at a time, mixing well after each addition. Then, add the vanilla extract and mix until combined.
In a separate bowl, whisk together the all-purpose flour, baking powder, baking soda, and sea salt.
Gradually add the dry ingredients to the butter mixture, mixing on low speed until just combined.
Gently fold in the semi-sweet chocolate chips, white chocolate chips, candy-covered chocolates, peanut butter chips, and chopped walnuts.
Using a cookie scoop, drop rounded tablespoons of dough onto your prepared baking sheet, leaving space between each cookie.
Bake in the preheated oven for 10-12 minutes or until the edges are lightly golden.
Remove the cookies from the oven and let them cool on the baking sheet for 5 minutes before transferring them to a cooling rack.
