Preheat your oven to 375º
Make sure your butter is at room temperature, or put it in microwave safe bowl and microwave until softened. It's okay if it melts a tiny bit, but don't melt it all the way!
In a large mixing bowl add your butter, eggs, and sugars, mix thoroughly.
Next add in your salt, baking soda, and vanilla. As you're adding them, sprinkle them all over the bowl so your salt and baking soda don't clump up! Mix well. If you're worried they will, mix them first with your flour, then you'll add all your dry ingredients at once.
Add flour, and mix until combined, don't overmix at this point.
Add your sprinkles in! As much as or as little as you like. If you want your sprinkles to stay on the top then only add about 1/4 cup of sprinkles into the mix, then we'll add more on top after you roll them out.
Chop up your Oreos! Not too much though, I just cut mine into 6 pieces. I used about 12 in mine but add as much or as little as you like. Carefully mix them in so your Oreos don't completely crumble, you want some good chunks.
Line your baking sheet with parchment paper if you have it, if not, they'll be okay, I like to do it to help with the mess. DO NOT grease your pan!
Spoon 12 1.5 inch size balls of cookie dough onto the large baking sheet. If you want the sprinkles on top as I mentioned earlier then lightly dip the top of your cookie dough into sprinkles before you set it on the baking sheet.
Cook for 9-11 minutes. I like to check it at 9 minutes and then add time in 2-minute increments. You want them to be a light golden color. They'll firm up as they cool.
Let them set on the baking sheet and cool off for at least 5 minutes before you try to move them or they'll squish up.
Place on a wire cooling rack, eat one warm and then decide if you're going to share or not.