In a bowl, combine the sugar, butter, and egg yolk until well incorporated.

Gradually add the flour and mix until a dough forms.

Divide the dough evenly and roll it into two log shapes, about 1 inch by 4 inches long. Cover with plastic wrap and chill in the fridge for about 30 minutes.

Preheat your oven to 350°F (175°C). Once chilled, remove the logs from the fridge and plastic wrap.

On a shallow plate, sprinkle the 2 tablespoons of sugar. Roll the logs in the sugar to coat the outside.

Using a sharp knife, cut each log into 3/8” slices and place them on a parchment-lined cookie sheet.

Bake for approximately 10 minutes or until the cookies are lightly golden and baked through.

Allow the cookies to cool on the sheet for about 5 minutes to set before transferring them to a cooling rack.