Texas Sheet Cake Cookies

Melt the butter in a saucepan over medium heat. Stir in cocoa powder and milk, whisking until smooth.
Remove from heat and whisk in powdered sugar and vanilla extract until smooth and creamy.
Spoon the warm frosting over the cooled cookies, allowing it to set before serving. Enjoy!
Prep Time: 10 minutes
Cook Time: 10 minutes
Servings: 24 cookies
Calories: 160 kcal per cookie