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Anna Olson’s Oven-Baked S’Mores Recipe

Anna Olson’s Oven-Baked S’Mores Recipe

5.3 from 8 reviews

Anna Olson’s Oven-Baked S’Mores is a delicious, layered dessert combining crunchy graham crackers, a sweet butter and brown sugar paste, gooey marshmallows, and rich chocolate chips, all baked to perfection for a golden, melty treat that’s perfect for sharing.

Ingredients

Scale

For the Graham Cracker Paste:

  • ½ cup unsalted butter, cut into pieces
  • 2/3 cup packed light brown sugar
  • ½ cup 2% milk
  • 1 teaspoon vanilla extract
  • 1¼ cups graham cracker crumbs

For the S’mores Layers:

  • 350 g whole graham crackers (about 32-48, depending on the brand)
  • 2½ cups milk or semisweet (or mixed) chocolate chips or chunks
  • 6 cups mini marshmallows

Instructions

  1. Preheat the oven: Set your oven to 350°F (175°C) and line an 8 or 9-inch square pan with parchment paper, extending the paper about an inch above the pan edges for easy lifting.
  2. Make the graham cracker paste: In a saucepan over medium-low heat, melt the unsalted butter. Whisk in the brown sugar, 2% milk, and vanilla extract, warming just enough to take the chill off the milk. Remove from heat, then whisk in the graham cracker crumbs until you form a fluid paste.
  3. Assemble the first layer: Lay a single layer of whole graham crackers to cover the bottom of the prepared pan. Spoon one-third of the graham cracker paste over the crackers, spreading slightly but not fully covering the crackers. Sprinkle one-third of the mini marshmallows evenly on top, followed by one-third of the chocolate chips.
  4. Build second and third layers: Arrange a second layer of graham crackers over the first and repeat the process by adding a third of the paste, marshmallows, and chocolate chips. Repeat again with the remaining crackers, paste, marshmallows, and chocolate chips for the final layer.
  5. Bake: Place the assembled pan in the preheated oven and bake for 16-20 minutes until the marshmallows on top are browned and toasted.
  6. Cool and serve: If not serving immediately, cool the pan on a rack and then chill completely in the refrigerator. Portion into squares once chilled for easier cutting. Store at room temperature for up to 3 days.

Notes

  • Use a parchment paper sling to easily lift the bars out of the pan for cutting.
  • For a richer chocolate flavor, mix milk and semisweet chocolate chips or use all semi-sweet chips.
  • Toasting the marshmallows under the broiler for 1-2 minutes after baking can add extra caramelization if desired.
  • Store leftovers in an airtight container at room temperature for up to 3 days or refrigerate for longer freshness.
  • You can substitute the mini marshmallows with larger marshmallows cut into smaller pieces if preferred.

Nutrition

Keywords: oven baked s’mores, s’mores bars, layered dessert, graham cracker dessert, marshmallow chocolate bars, Anna Olson recipe, easy s’mores recipe