Brownies are one of the most popular desserts in America. Easy to make, but with little variation. No matter if they turn out cake-like or fudgy, every batch tastes the same. As fall turns to winter, why not add a taste of winter? Melting a layer of chocolate thin mints on a regular batch of brownies will add serious flavor to this sweet treat. Give this cool easy dessert a try — it is a cinch to make anytime of the year.
Preheat the oven to 350 degrees, if using a glass baking dish (if using a nonstick pan, 325 degrees).
Using a handheld mixer or whisk, blend the first 4 ingredients in a large bowl. Be sure to break up all clumps of brownie mix.
Transfer the mixture to a glass baking dish or nonstick pan. Baking time will depend on pan size. For a 9-by-13-inch pan, bake for 27-30 minutes; for a 9-inch-square pan, bake for 34-37 minutes; for an 8-inch-square pan, bake for 42-45 minutes.
With 5-7 minutes left, remove the pan from the oven, and top the brownies with chocolate thin mints. (For a stronger and more distinct flavor, use mints covered in dark chocolate. York mints are generally too thick, but will work if you are in a pinch.)
Place the pan back in the oven and let the mints melt for the remaining 5-7 minutes. Remove the brownies from the oven, and using a spatula, spread the melted mints. Let the brownies set and the mint topping harden. Enjoy this easy dessert with a cold glass of milk!