There is something mighty satisfying about turning a handful of simple pantry staples into a gooey, chocolatey treat that tastes like a backyard campfire without ever stepping outdoors. This easy baked s'mores dessert leans on whole unsalted saltine crackers for a crisp, sturdy base, then layers on the classic flavors folks love on National S'mores Day. It is the sort of homespun dessert that feels a little clever, a little nostalgic, and just right for busy family evenings or when you need a sweet pan to carry to the table in a hurry.
Serve these warm squares with cold glasses of milk, fresh coffee, or a scoop of vanilla ice cream if you want to dress them up a touch. They also sit nicely on a dessert tray with strawberries or sliced bananas, and for a picnic or church supper, you can let them cool completely and cut them into neat bars for easy passing.
5-Ingredient Oven Baked National S'mores Day Dessert
Servings: 12 bars
Ingredients
40 whole uncrushed raw unsalted saltine crackers
1 1/2 cups milk chocolate chips
3 cups mini marshmallows
1/2 cup unsalted butter
1/2 cup packed light brown sugar
Directions
1. Preheat your oven to 350°F and line an oven-safe sheet pan or 9x13-inch baking pan with parchment paper or foil for easy cleanup. Arrange the whole saltine crackers in a single, snug layer across the bottom of the pan.
2. In a small saucepan over medium heat, melt the butter with the brown sugar, stirring until the sugar dissolves and the mixture is smooth and bubbling, about 2 to 3 minutes.
3. Pour the hot butter and brown sugar mixture evenly over the crackers, spreading gently so most of the tops are coated. Bake for 5 minutes, just until bubbly.
4. Remove the pan from the oven and immediately sprinkle the chocolate chips over the hot crackers. Let them sit for 2 minutes to soften, then spread the chocolate into a rough even layer.
5. Scatter the mini marshmallows over the chocolate layer and return the pan to the oven for 2 to 4 minutes, until the marshmallows puff up and turn lightly golden.
6. Let the dessert cool for 15 to 20 minutes so it can set slightly, then cut or break into bars and serve warm or at room temperature.
Variations & Tips
Peanut Butter Touch: If your family likes that chocolate-peanut butter combination, spread a thin layer of creamy peanut butter over the crackers before adding the hot butter mixture. It makes the bars richer and gives them a lunchbox-favorite flavor.
Neater Bars: For cleaner slices, chill the pan for 20 to 30 minutes after it cools. A sharp knife lightly greased with butter will cut through the marshmallow topping much more easily.
Darker Chocolate Version: Swap the milk chocolate chips for semisweet or dark chocolate if you want a less sweet bite. That little change balances the marshmallows nicely and gives the dessert a more grown-up finish.
Watch the Marshmallows Closely: Marshmallows can go from pale to too dark in a blink, so stay near the oven during the final bake. You want them puffed and just toasted on top, not scorched.