Looking for an easy summer dessert that everyone will love? This 5-Ingredient Oven-Baked Summer Treat is a sweet, nostalgic dessert packed with crunchy malted milk balls, fluffy mini marshmallows, buttery graham cracker crumbs, and creamy sweetened condensed milk.
Every bite combines different textures and flavors, from the chocolatey crunch of malted milk balls to the soft, chewy marshmallows and rich buttery base. The sweetened condensed milk brings everything together, creating a delicious dessert that’s perfect for sharing.
With only five simple ingredients, this recipe is easy to prepare and requires very little hands-on work. It’s a wonderful choice for summer cookouts, family gatherings, birthday parties, movie nights, potlucks, or whenever you’re craving something sweet and comforting.
Recipe Details
- Prep Time: 10 minutes
- Cook Time: 20–25 minutes (estimated)
- Cooling Time: 1 hour
- Total Time: Approximately 1 hour 35 minutes
- Servings: 12–16 portions
- Course: Dessert
- Cuisine: American
- Method: Oven-Baked
Ingredients You’ll Need
- 2 cups whole malted milk balls: These provide the signature malted flavor and crunchy chocolate-covered candy pieces that make this dessert special.
- 2 cups mini marshmallows: Add a soft, chewy texture and delicious sweetness throughout the dessert.
- 1½ cups crushed graham crackers: Create a buttery, flavorful base and help give the finished treat structure.
- 6 tablespoons unsalted butter, melted: Adds richness and helps bind the graham cracker crumbs together.
- 1 can (14 ounces) sweetened condensed milk: Provides creamy sweetness and helps hold the ingredients together.
Kitchen Equipment Needed
- 8-inch or 9-inch square baking pan
- Large mixing bowl
- Measuring cups and spoons
- Microwave-safe bowl or small saucepan
- Rubber spatula
- Parchment paper
- Cooling rack
How to Make This 5-Ingredient Oven-Baked Summer Treat
Step 1: Preheat the Oven
Preheat your oven to 350°F (175°C). Line an 8-inch or 9-inch square baking pan with parchment paper, leaving a little extra paper hanging over the sides for easy removal.
Step 2: Prepare the Graham Cracker Base
Place the crushed graham crackers in a mixing bowl. Pour in the melted butter and stir until the crumbs are evenly moistened.
Transfer the mixture into the prepared baking pan. Press it firmly into an even layer using the back of a spoon or spatula.
Step 3: Add the Malted Milk Balls
Spread the whole malted milk balls evenly over the graham cracker base. Distribute them across the pan so every portion gets plenty of chocolatey candy pieces.
Step 4: Add the Mini Marshmallows
Sprinkle the mini marshmallows over the malted milk balls, spreading them evenly throughout the pan.
Step 5: Pour Over the Sweetened Condensed Milk
Slowly pour the sweetened condensed milk over the entire mixture. Try to distribute it as evenly as possible so the ingredients become coated.
Step 6: Bake Until Golden
Place the baking pan in the preheated oven and bake for approximately 20–25 minutes, watching carefully toward the end.
The marshmallows should become lightly golden, and the mixture should look bubbly around the edges. Baking time may vary depending on your pan and oven.
Step 7: Cool and Slice
Remove the pan from the oven and place it on a cooling rack. Allow the dessert to cool completely before lifting it out using the parchment paper.
Cut into squares or small bars and serve.
Tips for the Best Results
- Use whole malted milk balls: Keeping them whole gives the dessert its distinctive crunchy candy texture.
- Press the graham cracker base firmly: This helps create a more stable bottom layer.
- Distribute the condensed milk evenly: Pour slowly to help coat the ingredients throughout the pan.
- Watch the marshmallows: They can brown quickly, so keep an eye on the dessert during the final minutes of baking.
- Cool completely before slicing: The condensed milk needs time to set, making the bars easier to cut.
- Use parchment paper: It makes removing the dessert from the pan much easier.
Delicious Variations
Chocolate Lover’s Version: Add a handful of chocolate chips for even more chocolate flavor.
Peanut Butter Twist: Drizzle melted peanut butter over the finished dessert before serving.
Extra Crunch: Add a small amount of chopped peanuts or toasted pecans for additional texture.
Different Candy: Try chocolate-covered caramel candies or another favorite malted candy if you want to experiment with the flavor.
Graham Cracker Alternative: Crushed digestive biscuits can be used if graham crackers are unavailable.
What to Serve with This Summer Dessert
This sweet baked treat pairs wonderfully with:
- Vanilla ice cream
- Fresh strawberries
- Cold milk
- Iced coffee
- Homemade lemonade
- Fresh summer fruit
For parties and cookouts, cut the dessert into small squares and arrange them on a serving platter.
Storage Instructions
Room Temperature: Once completely cooled, store the dessert in an airtight container for up to 2 days in a cool environment.
Refrigerator: Keep leftovers in an airtight container in the refrigerator for up to 5 days. Refrigeration helps the condensed milk-based dessert stay firm.
Freezer: Wrap individual portions and place them in a freezer-safe container for up to 2 months. Thaw in the refrigerator before serving.
Serving Tip: If refrigerated, allow the bars to sit at room temperature for a few minutes before serving for a softer texture.
Frequently Asked Questions (FAQ)
What are malted milk balls?
Malted milk balls are crunchy, malt-flavored candies usually covered in chocolate. They provide a distinctive combination of chocolate sweetness and toasted malt flavor.
Can I crush the malted milk balls instead of using them whole?
Yes, but keeping them whole gives the dessert more texture and makes each serving visually appealing. If you prefer smaller candy pieces, you can roughly chop some of them.
Why does my dessert need to cool completely?
The sweetened condensed milk helps bind the ingredients together as the dessert cools. Cutting it while warm may cause the squares to fall apart.
Can I prepare this dessert ahead of time?
Absolutely! You can bake it a day ahead, allow it to cool completely, and store it covered in the refrigerator until you’re ready to serve.
Can I use large marshmallows instead of mini marshmallows?
Yes. Cut large marshmallows into smaller pieces so they distribute more evenly throughout the dessert.
Is this recipe suitable for summer parties?
Definitely! It’s easy to portion into small squares and makes a fun addition to potlucks, cookouts, family celebrations, and summer dessert tables.
Conclusion
This 5-Ingredient Oven-Baked Summer Treat is proof that delicious desserts don’t need complicated ingredients or hours of preparation. With crunchy malted milk balls, soft mini marshmallows, buttery graham crackers, and creamy sweetened condensed milk, every bite is packed with nostalgic sweetness.