Homemade brownie brittle is easy to make and the perfect brownie/cookie combo! Rich brownie taste with a cookie crunch.

My dad gave me a bag of brownie brittle before a flight once. I inhaled all of that crispy goodness before we had even taxied out to the runway.

It was THAT good.

Unfortunately, it wasn’t widely available at the time. So when I tried to explain the magic brownie/cookie hybrid to my husband… He was beyond confused. Which is why I had to figure out how to make brownie brittle.

Recipe Features:

Rich Chocolate Flavor
5-Ingredient Dessert
Easy to Customize

What You Need:

The base ingredients you need for this recipe are minimal, which means you should reach for quality.

Boxed brownie mix: We really like Ghirardelli Triple Chocolate Brownie Mix or Betty Crocker Triple Chunk Brownie Mix. But really, pick your personal favorite.
MINT extract. Try not to use peppermint. While they are similar, the flavor profiles are polar opposites.

For a full list of ingredients and their measurements see the recipe card below.

Step By Step Instructions:

Line a large cookie sheet with parchment or a silicone mat. Preheat your oven to 350 degrees.
Prepare the brownie batter according to the package directions.
Stir the mint extract and spread onto you cookie sheet until it is thinned about 1/4 inch. You want to make sure that the batter is spread fairly even to avoid burning.
Sprinkle with chocolate chips, if using, and bake for 15-20 minutes. Make sure you turn the pan halfway through for even baking. Keep a close eye on the dish to avoid over baking. If you notice the edges browning remove the pan from the oven.
Cool completely and break apart by hand.

Homemade Brownie Brittle Tips and FAQs:

Line your pan with parchment. This brittle will be difficult to get out of the pan without the extra help.
The edges of this brittle could burn. Watch closely the last five minutes of baking.
Let the brittle cool completely on the pan before handling.

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