Anna Olson’s Oven-Baked S’Mores Recipe
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.
- Author: Kai
- Prep Time: 15 minutes
- Cook Time: 20 minutes
- Total Time: 35 minutes
- Yield: 16 servings (about 16 squares) 1x
- Category: Dessert
- Method: Baking
- Cuisine: American
- Diet: Vegetarian
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
- 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.
- 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.
- 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.
- 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.
- Bake: Place the assembled pan in the preheated oven and bake for 16-20 minutes until the marshmallows on top are browned and toasted.
- 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
- Serving Size: 1 square (approx. 1/16 of recipe)
- Calories: 290
- Sugar: 25g
- Sodium: 110mg
- Fat: 14g
- Saturated Fat: 8g
- Unsaturated Fat: 5g
- Trans Fat: 0g
- Carbohydrates: 36g
- Fiber: 1g
- Protein: 3g
- Cholesterol: 30mg
Keywords: oven baked s’mores, s’mores bars, layered dessert, graham cracker dessert, marshmallow chocolate bars, Anna Olson recipe, easy s’mores recipe