13x9 Rice Krispie Treats Recipe for Easy, Large Batch

Rice Krispie treats are a classic, no-bake dessert that’s perfect for parties, gatherings, or a quick sweet snack. Making a 13×9-inch pan of these treats ensures you have enough to serve a crowd or to keep on hand for several days. This recipe is simple, quick, and yields wonderfully chewy, crispy treats that everyone loves.

Ingredients

6 tablespoons unsalted butter
10 cups (about 10 oz) mini marshmallows
1 teaspoon vanilla extract (optional)
6 ½ cups crispy rice cereal (such as Rice Krispies)

Instructions

Prepare your baking pan by lining it with parchment paper or lightly greasing it with butter or non-stick spray. This prevents sticking and makes cleanup easier.

In a large saucepan, melt the butter over medium heat. Stir occasionally to prevent burning and to ensure even melting. This should take about 2-3 minutes.
Once the butter is fully melted, add the mini marshmallows to the saucepan. Continue stirring gently until the marshmallows are completely melted and the mixture is smooth. This process usually takes 3-5 minutes. You can add the vanilla extract here if using, and stir it in thoroughly.
Remove the saucepan from the heat. Immediately add the crispy rice cereal to the marshmallow mixture. Use a spatula or wooden spoon to gently fold the cereal into the marshmallow mixture until evenly coated. Be careful not to crush the cereal.

Quickly transfer the mixture to your prepared 13×9-inch pan. Use a buttered spatula or wax paper to press the mixture evenly into the pan. Applying gentle pressure helps create a uniform surface and ensures the treats hold together well.
Allow the treats to cool at room temperature for at least 30-45 minutes. For faster setting, you can place the pan in the refrigerator for about 15 minutes, but avoid leaving them too long to prevent them from becoming too hard.
Once cooled and set, cut into squares or rectangles of your desired size. For a 13×9-inch pan, cutting into 2-inch squares typically yields about 24 treats.

Serve and enjoy! Store any leftovers in an airtight container at room temperature for up to 3 days for optimal freshness.

Tips

Substitutions: You can substitute vegan butter or margarine for regular butter, and vegan marshmallows if you need a dairy-free version.
Adding extras: Mix in chocolate chips, sprinkles, or chopped nuts into the cereal mixture for added flavor and texture.

Prevent sticking: Lightly greasing your spatula or using parchment paper makes pressing the mixture into the pan easier and cleaner.
Storage: Keep treats in an airtight container at room temperature for up to 3 days, or freeze for longer storage.

Serving Suggestions

Serve these rice krispie treats as a fun dessert at parties, school events, or family gatherings. They pair well with a glass of milk or a hot cup of coffee. For a festive touch, decorate the treats with colorful icing, drizzles of chocolate, or themed sprinkles.

Variations

Chocolate Rice Krispie Treats: Mix in 1 cup of chocolate chips into the melted marshmallow mixture or drizzle melted chocolate over the cooled treats.
Peanut Butter Version: Add ½ cup of creamy peanut butter to the melted butter and marshmallows for a nutty flavor.
Holiday Themed: Incorporate red and green sprinkles or mini candy canes into the mixture for seasonal treats.

Healthy Twist: Use whole grain cereal or add dried fruits and seeds for a more nutritious snack.

Storage and Reheating

Stored in an airtight container at room temperature, rice krispie treats stay fresh for up to 3 days. To keep them moist, avoid refrigerating as it can make them hard. If they become stale or dry, you can briefly microwave a treat for about 10 seconds to soften it before serving. For longer storage, wrap individual treats tightly in plastic wrap and freeze for up to 1 month. To reheat, let them thaw at room temperature or microwave briefly to regain their chewy texture.

Frequently Asked Questions

Can I make rice krispie treats ahead of time?

Yes, you can prepare and cut the treats a day in advance. Store them in an airtight container at room temperature to keep them fresh. For best texture, avoid refrigerating as it can cause the treats to become hard.

What size should I cut the treats into?

For a 13×9-inch pan, cutting into 2-inch squares yields about 24 treats. You can adjust the size depending on your serving needs—larger for dessert portions or smaller for snacks or party favors.

Can I use different cereals?

Absolutely! While traditional Rice Krispies are the classic choice, you can experiment with other cereals like Cocoa Krispies, multigrain cereals, or even Chex for different flavors and textures. Just ensure the cereal is similar in size for even coating and consistency.

What should I do if the marshmallow mixture is too hard to stir?

If the marshmallow mixture cools too quickly or becomes stiff, gently reheat it over low heat, stirring constantly until it becomes smooth again. Alternatively, microwave the mixture in short bursts of 10 seconds, stirring in between, to loosen it up.

Is it necessary to press the mixture firmly into the pan?

Yes, pressing the mixture firmly helps the treats hold together better and results in a uniform, chewy texture. Use the back of a buttered spatula or wax paper to press down evenly without crushing the cereal.

13×9 Rice Krispie Treats Recipe for Easy, Large Batch