Preheat oven to 350°F (175°C).

In a large bowl, mix together butter, rolled oats, sugar, egg, and almond flavoring until well combined.

Form small balls of dough.

Place the dough balls onto a greased cookie sheet.

Flatten each ball with a fork.

Bake in the preheated oven until lightly browned, approximately 12-15 minutes.

Let cool on the baking sheet for a few minutes before transferring to a wire rack to cool completely.