Preheat the oven to 350°F. Line 2 baking sheets with parchment paper.
In the bowl of a stand mixer fitted with the paddle attachment, add the butter, powdered sugar, and vanilla extract. Mix on low until combined.
Add the flour and mix on low until combined into a smooth dough. It should feel like play dough in your hands.
Add the sprinkles into small bowls.
Using your hands, roll the dough into 30 balls and place on the prepared baking sheets. Flatten slightly so they are about 2-inches in diameter. Dip the tops into sprinkles or add sprinkles on top.
Bake for 14 to 18 minutes or until golden brown on the bottoms.
Store in a cool dry place for up to 7 days.
Video
Notes
Tips
Always weigh ingredients for the best results.
Make sure to use very soft butter for these cookies as this really matters for the texture of the cookies. I know it can be incredibly difficult this time of year to soften butter naturally on the counter, as it's cold! But, make sure that you are still using soft butter before starting this recipe. I would recommend leaving butter out on the counter the night before, and then softening in the microwave until it is soft. Do not do more than 10 seconds per 1/2 cup of butter at once.
Make sure to sift powdered sugar, it really needs to be sifted to avoid clumps.
If you want to roll these out and use a cookie cutter, you totally can!
Store shortbread cookies in a cool, dry place.
High Altitude — Bake at 350°F for 13 to 17 minutes or until golden brown on the bottoms.