Preheat oven to 350 degrees and like a baking sheet with parchment paper.

In a small bowl, whisk flour and cornstarch together.

In a large bowl beat butter and sugar together until fluffy and combined, about 2 minutes. Add milk and vanilla and beat again for 3 minutes.

Using a spatula, fold in half the flour mixture into the butter mixture. Repeat with the other half of the flour mixture.

When the dough forms together from crumbly, then it's time to separate into dough balls and place on parchment paper lined sheet.

Make balls a few inches round and place a few inches apart on sheet. Press down on balls with a fork or flatten using the bottom of a cup. Add sprinkles if you want before placing in the oven.

Bake for 7-10 minutes or until edges of the cookies start to turn a golden color.

When done, remove from oven and place on wired rack. Enjoy as-is or decorate the cookies more.