Beat the butter and sugar together until creamy. This should take about two to three minutes.
Add in the egg and the vanilla extract. Beat until it’s fully mixed.
Use a 2-tablespoon sized measuring spoon to scoop the dough. Shape the dough into round balls, and place them close together on the baking sheet to fit into the freezer.
Put the baking sheet in the freezer for 15 mins. You want to bake the cookies from a frozen state, so they don’t spread a lot while baking.
Preheat the oven to 350 degrees F.