01 -
Get your oven hot at 350°F. Put parchment paper on your baking sheets so cookies won't stick.
02 -
Mix your softened butter with both brown and white sugars in a big bowl. Beat them together until you get a fluffy, light mixture.
03 -
Drop in your eggs and pour the vanilla. Stir everything until it's all blended together nicely.
04 -
Dump in your flour, baking soda, baking powder, and salt. Mix just enough that you can't see any flour streaks anymore.
05 -
Carefully stir in all your goodies - the chocolate chips, broken pretzels, M&M's or sprinkles, chopped nuts, and white chocolate bits or tiny marshmallows. Make sure they're spread out evenly in the dough.
06 -
Grab about 1.5 to 2 tablespoons of dough for each cookie and roll into balls. Place them on your ready baking sheets with plenty of room between them.
07 -
Pop them in the oven for 12 to 15 minutes until the edges look done but the middle still seems soft. Let them sit on the baking sheet for 5 minutes, then move to a wire rack to cool all the way.