In a large bowl add in the melted butter, both sugars, eggs, and vanilla extract and whisk together until combined.

In a separate bowl, mix together the flour, baking soda, and salt.

Add the dry ingredients to the wet and stir with a spatula to form your cookie dough. IMPORTANT STEP: Now, chill the dough for a minimum of 2 hours before scooping to avoid the cookies from spreading while baking.

Using a 1/4 cup measure, scoop the cookie dough base into roughly 14 cookies (weighing roughly 2 1/2 oz each)

Press your chocolate chunks into your base cookie and fold the cookie dough over itself to make sure the chocolate chunks are distributed throughout

Using your hand make a well in the center of the dough. Add in the oatmeal and the raisins. Fold the cookie dough over itself to make sure the oatmeal and raisins are distributed throughout.

Using your hand make a well in the center of the dough. Add in the cocoa powder and chocolate chunks. Fold the cookie dough over itself to make sure the ad-ins are distributed throughout.

Using your hand make a well in the center of the dough. Add in the peanut butter and chopped peanuts. Fold the cookie dough over itself to make sure the peanut butter and peanuts are distributed throughout.

Using your hand make a well in the center of the dough. Add in the Nutella and chopped hazelnuts. Fold the cookie dough over itself to make sure the Nutella and nuts are distributed throughout.

Using your hand make a well in the center of the dough. Add in the graham crackers, marshmallow, and chocolate. Fold the cookie dough over itself to make sure the s'more ad-ins are distributed throughout.

Using your hand make a well in the center of the dough. Add in the chopped caramels. Fold the cookie dough over itself to make sure the caramel candies are distributed throughout. Top with flakey sea salt.

Using your hand make a well in the center of the dough. Add in sprinkles and white chocolate chips. Fold the cookie dough over itself to make sure the sprinkles and chips are distributed throughout.

When ready to bake preheat the oven to 375ºF (185°C).

Roughly shape the cookies back into balls of dough before placing the cookies on a large parchment-lined cookie sheet about 4 inches apart. TIP: Do Not Flatten the cookies! Leave them to bake as a rounded scoop of dough. This will ensure your cookies don't spread out too much.

Bake for roughly 12 minutes or until you can still see it is doughy in the center but browning around the edge. Resist the urge to bake for longer as you will over bake it and lose that gooey center.

Let cool on the sheet for 5 minutes then enjoy. Store in an airtight container for up to 3 days.