Gather the ingredients - * Brown sugar * Butter * Egg * Vanilla extract * Flour * Baking soda * Andes mints
In a large bowl, whisk together the melted butter and brown sugar until smooth.
Next, add the egg and vanilla and whisk to combine.
Add the flour and baking soda and fold in the dry ingredients.
Add the chopped Andes mints and continue folding until no large lumps of flour remain.
Scoop 2 tablespoon sized balls on the baking sheets, making sure to place them at least 3" apart - these cookies spread.
Bake for 14 minutes, or until the edges are set and golden brown. Allow the cookies to cool fully to room temperature on the tray. They will set as they cool.