Worlds Best Butter Cookies
Ingredients
8 oz unsalted butter
3/4 cup granulated sugar
1/4 tsp salt
1 1/2 tsp pure vanilla extract
1 large egg yolk
2 cups all-purpose flour
Instructions
Beat butter, sugar, salt, and vanilla together until smooth and creamy.
Mix in the egg yolk until fully incorporated, scraping down the sides of the bowl as needed.
Add the flour and mix just until incorporated.
Transfer dough to a lightly floured surface, kneading a few times until smooth.
Shape the dough into a log, wrap it in plastic, and refrigerate for several hours or freeze for later use.
Preheat the oven to 325F and line baking sheets with parchment paper.
Slice the dough into 1/8-inch thick rounds and place them on the sheets, spaced about an inch apart.
Bake for 16-18 minutes, or until the edges just begin to turn golden.
Cool before serving.