Preheat the oven to 350 F. In a large bowl, combine butter with powdered sugar until fluffy. Add in vanilla extract, and mix until smooth. Add in the flour, mix until it is fully combined. Fold in the sprinkles.
Roll the cookie dough into balls, and flatten each one slightly, place the cookies onto a large ungreased baking sheet at least 2-inches apart. Bake for 10-12 minutes.