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S'mores Brownies in Jars on a red and white napkin with two spoons

S’mores Brownies in Jars

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These layered S’mores Brownies in Jars have all the amazing flavors of your favorite fireside treat in a fun presentation! 

S'mores Brownies in Jars on a red and white napkin with two spoons

S’mores Brownies in Jars

This s’mores inspired dessert, S’mores Brownies in Jars, was a snap to prepare. A layer of graham cracker crust was topped with some fudgy brownie dough and baked in cute little mason jars.

Marshmallows filled the rest of the jars and were broiled to give that characteristic roasted s’mores look. You can also make these using a boxed brownie mix, which will most likely fill more than 4 jars.

S'mores Brownies in Jars overhead view

S’mores Desserts

We spent many summer vacations with my in-laws up in Wisconsin. Boating, fishing, Packer worshiping were all part of our adventures up north. Come sundown, we’d get a roaring campfire going and spend the last minutes of twilight searching for the perfect marshmallow roasting sticks. Making s’mores by squeezing a charred and gooey marshmallow and a piece of milk chocolate between two graham crackers was part of our nightly routine.

Recipes from the Heart

When I learned that my father-in-law had metastatic lung cancer earlier this year, Kim of Cravings of a Lunatic was the first blogger friend to reach out and offer me comfort and an ear whenever I needed to talk. She watched her own father succumb to this vicious disease and knew how it ripped her heart to shreds. She approached me earlier this spring about sharing a dish for “Recipes from The Heart” to honor her dear dad.

Scroll down to see all the wonderful dishes and links, including my S’mores Brownies in Jars, to stories about how cancer has affected so many of us. And I’m certain you’ll want to enter our KitchenAid Stand Mixer giveaway, too.

Recipes from the Heart Event Details:

Today’s event is being hosted by Kim and Jen of Juanita’s Cocina. They teamed up with a group of blogger friends to help raise awareness and support for Cancer and Hospice today in memory of Kim’s dad. We encourage everyone to read the posts and share their own experiences with cancer.

We also would like to encourage everyone to donate to the Canadian Cancer Society, the American Cancer Society and also to the Canadian Hospice Palliative Care Association. Hospice was a key element during Kim’s father’s battle with cancer. They made it possible for Kim to care for him at home. So please show your support and donate if you can. You can also contact your local Hospice and donate directly to them if you wish. A little goes a long way!

Threee S'mores Brownies in Jars with red handled spoons

More S’mores Inspired Recipes:

S'mores Brownies in Jars on a red and white napkin with two spoons

S'mores Brownies in Jars

A twist on the classic campfire dessert with s'mores ingredients layered in mason jars!

Prep Time 20 minutes
Cook Time 28 minutes
Total Time 48 minutes
Yield 4


Graham Cracker Crust:

  • 1 cup graham crackers
  • 1/4 cup (1/2 stick) melted butter
  • 1 tablespoon sugar

Brownie Layer:

  • 1/4 cup butter (1/2 stick)
  • 4 ounces semi-sweet chocolate, chopped
  • 3/4 cup sugar
  • 2 eggs, at room temperature
  • 1 teaspoon vanilla
  • 1/4 cup plus 2 tablespoons flour
  • 1/4 cup plus 2 tablespoons flour


  • Mini or regular sized marshmallows


Set canning jars on baking sheet.

Mix together graham cracker crumbs, melted butter and sugar. Place approximately ¼ cup in bottom of each jar and tamp down to make and even layer.

Preheat oven to 350º.

Make brownie batter by melting chocolate and butter in microwave safe bowl, zapping and stirring at 30 second increments till smooth and melted. Mix in sugar and vanilla and let cool a few minutes. Mix in eggs, then salt and flour.

Divide batter evenly between the four jars. Bake for approximately 30 minutes (time will vary depending on diameter of jars). Start checking at 25 minutes, making sure centers look cooked before removing from the oven. You can use a toothpick to check doneness.

Let cool about 15 minutes.

Top each with a handful of mini-marshmallows or a few large marshmallows. Place under broiler, about 6 inches from element, until tops are browned, about 2-3 minutes. Watch carefully to prevent burning.


Note: You will need 4 canning jars with about a 1 to 1 ¼ cup capacity

Nutrition Information:



Serving Size:

1 jar

Amount Per Serving: Calories: 565Total Fat: 25gSaturated Fat: 14gTrans Fat: 1gUnsaturated Fat: 10gCholesterol: 125mgSodium: 234mgCarbohydrates: 83gFiber: 3gSugar: 63gProtein: 7g


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