Preheat oven to 180°C (350°F) and line a baking sheet with parchment paper.

Cream butter and sugar until light and fluffy.

Add eggs one at a time, then mix in vanilla extract.

In another bowl, combine flour, baking soda, and salt.

Gradually mix dry ingredients into the wet mixture until a soft dough forms.

In a small bowl, mix sugar and cinnamon.

Roll dough into balls and coat in cinnamon sugar.

Place on baking sheet and bake for 10–12 minutes until edges are set.

Let cool slightly before serving.