These Keto Crispy Cereal Treats are a low-carb take on the classic marshmallow rice crispy treats! Made without sugar and without grains, they need just 4 ingredients, one bowl, and about 5 minutes of hands-on time! These low-carb, gluten-free, and sugar-free no-bake cereal bars will bring back fond childhood memories!
Keto Crispy Cereal Treats
Now that I'm grown, I've come to realize that those sugary cereals we enjoyed as kids were not healthy or nutritious.
Our nutritional world has come a long way whereby it is now possible to find a cereal that is not only low in carbs but also healthy. The rice crispy cereal used in this recipe is by Highkey. Their Frosted Protein Cereal looks like Rice Crispy cereal with a hint of marshmallow flavouring. It’s delicious straight out of the box and perfect cereal for this keto crispy rice crispy copycat treat as they contain zero grams of net carbs!
Ever since going keto, I’ve been slowly building up my repertoire of copycat nostalgic childhood favourites converted into gluten-free and sugar-free versions. Some of my favourites are my Copycat Payday Candy Bars (Keto, Gluten-Free), Copycat Chocolate Peanut O'Henry Bars as well as my Copycat 3-Ingredient Keto Chocolate Crunch Bar Recipe.
I knew it was time to undertake yet another childhood recipe, the classic Rice Crispy Squares and create a simple copycat keto version.
This keto crispy cereal treat recipe is probably one of the easiest recipes around. By simply combining a little melted butter and sugar-free white chocolate along with the sugar-free syrup, you can make these low-carb cereal treats in about 5 minutes!
You will be amazed at how much these keto rice crispy treats taste like the real thing. This is a fun recipe to make with kids and you can always have some fun and add some sugar-free sprinkles or frosting for an extra added treat!
Copycat Mallow Munch Bar
Well, they do! And for a fraction of the cost!!
For a Copycat Chocolate Mallow Munch Bar: Use sugar-free chocolate instead of sugar-free white chocolate
For a Copycat Peanut Butter Mallow Munch Bar: Replace the butter for peanut butter
Keto Rice Crispy Cereal
These cereal marshmallow treats can be made with just about any brand of cereal depending on how many grams your keto lifestyle allows. These no-bake bars turn out chewy, gooey, and sweet. The entire family will love them!
If you can't find HighKey Cereal there are many other keto and low-carb cereals on the market today. Brands like Catalina Crunch and Magic Spoon Cereal are keto-friendly, sugar-free as well as gluten-free. All keto cereals cost significantly more than their commercial sugar-version cousins but if don't mind splurging, they are definitely worth it.
Don't want to spend the extra cash? No worries! For a few extra grams of carbs (but still 0 grams of sugar!), you can replace keto cereal with some low-sugar or zero sugar kinds of cereal.
Here are some options for zero sugar and lower carb cereal choices:
- Arrowhead Mills Puffed Millet - They’re crunchy, but their airiness makes them light and lower in calories than other more dense cereal shapes. A one cup portion of this gluten-free cereal provides just 60 calories, half a gram of fat, 11 grams of carb with one as fiber (10 grams of net carbs), 0 grams of sugar and a few grams of protein. Plus, almost all grocery stores, including Walmart, carry it.
- Arrowhead Puffed Corn - This cereal (you can find it on Vitacost for under $3) has a subtle natural sweetness. This staple food is hearty and flavorful, and makes a delicious puffed cereal. With a total of 12 grams of carbs with 2 grams coming from fiber, one cup of this cereal has only 10 grams of net carbs and 0 grams of sugar.
- Arrowhead Puffed Kamut - This is the lowest net carb cereal on the market with only 9 grmas of net carbs and zero grams of sugar. Derived from the Egyptian word for "wheat," this high-energy grain was discovered thousands of years ago. Its kernels are two to three times the size of its modern wheat relatives so they will not look like rice krispies but the end taste will be close enough.
Keto Rice Crispy Treat Ingredients
Keto Cereal– A low-carb crispy cereal, HighKey is probably the closest to look and taste and looks just like rice crispies. However, as I mentioned above, there are a variety of keto-friendly cereals available on the market today as well as zero sugar kinds of cereal so feel free to switch it up.
Butter - I used Challenge Unsalted butter for this recipe. I do not suggest salted butter as the end result may be too salty. Also, margarine or other styles of butter may not work but since I have not tried the variations, I can not be sure. If you want a nutty flavour, feel free to replace the butter with any smooth peanut, almond or any other type of nut or seed butter.
Sugar-free Syrup – I used VitaFiber which is proudly made in Canada and derived from pea starch through a patented process to create a better-tasting, better-for-you, sweet fibre. You can replace this with other sugar-free syrups such as ChocZero vanilla-flavoured syrup. I do not think that liquid Allulose will work as it is a little too thin and will not help to hold the ingredients together.
Sugar-Free White Chocolate Chips - Adding white chocolate chips adds some extra flavour as well as creamy gooeyness that you crave from rice crispy treats. I used Bake Believe Melting Wafers but Lily's, as well as ChocZero white chocolate, will work. I do not suggest using Bake Believe White Chocolate chips as they react poorly in this recipe.
Keto Rice Crispy Treats Without Marshmallows
To make keto rice crispy treats, it’s not necessary to make sugar-free marshmallows. This recipe for low-carb rice crispy treats doesn’t require marshmallows and uses the combination of sugar-free white chocolate and sugar-free syrup to achieve a marshmallow-like flavour as well as texture. If you want additional marshmallow flavour, you can add a couple of drops of marshmallow flavouring.
To achieve the gooey texture, you must use a sugar-free and keto syrup that is on the thicker side. Liquid allulose will not work for this recipe. If you can't find Vitafiber, you can use any of the syrups made by ChocZero which are thicker than most other keto syrups on the market. Just remember that if you choose a syrup that is flavoured, your bars will definitely have the same taste.
How do you make keto crispy cereal treats?
Start by adding the butter and syrup in a microwave-safe bowl or small saucepan. Heat until the mixture just begins to bubble. You’ll want to whisk it very well until a smooth, thick liquid remains. Now, add the white chocolate to the hot mixture and stir until the chocolate melts. Finally, pour this mixture over the keto cereal and stir until all the cereal is covered.
Moving quickly, transfer the mixture into an 8 x 8-inch lined pan or two 9 x 5-inch loaf pans. Using a spatula, press the crispy treat mixture into the pan. Refrigerate for at least 2 hours, to firm up.
Can I make this without butter?
I have made these without butter and the taste is really good.
Also, if you want to make these bars dairy-free, you could replace the butter with coconut oil or any type of nut or seed butter.
Tips to make the best low carb Rice Krispie treats
- If you’d prefer thick and dense Rice Krispies Treats, add extra cereal than recommended.
- Feel free to add some marshmallow extract, if you’d like these to have the authentic marshmallow flavor.
- Add a drizzle of sugar free chocolate over the bars for some extra chocolate flavor.
- When slicing the bars, pour hot water over the sharp knives to make it seamless and for the bars to remain intact.
- Feel free to make these into chocolate or peanut butter by replacing the white chocolate with chocolate and the butter with peanut butter
- Feel free to add some sugar-free sprinkles or some additional chocolate chips or frosting
How to store sugar free Rice Krispie treats
- To store: Crispy treats tend to become sticky and gooey when left at room temperature for too long. As such, it’s best for them to be stored in the refrigerator, covered. They will keep fresh for up to 2 weeks. Let the treats sit at room temperature for 30 minutes prior to enjoying it.
- To freeze: Place keto Krispie treats in a ziplock bag and store in the freezer for up to 6 months.
Keto Rice Crispy Treat Variations
Now that you know the basic easy keto rice crispy treat recipe, there are so many variations you can make. HighKey also makes a honey nut protein cereal, so you can easily make peanut butter keto rice crispy treats or any other flavour
More no bake keto recipes to try
- Creamy No-Bake Keto Strawberry Lasagna Dessert
- Keto Chocolate Pinwheel Cookies - Bake or No-Bake!
- No-Bake Coconut Strawberry Bars - Gluten-Free
- Copycat Chocolate Peanut O'Henry Bars
- Peanut Caramel Chocolate Bars (Keto, Low Carb, Gluten Free)
- 4 cups HighKey Frosted Protein Cereal
- ½ cup sugar-free white chocolate chips
- ¼ cup unsalted butter, melted
- ⅓ cup VitaFiber Syrup
- pinch of salt
- In a large microwaveable bowl, add the butter and microwave on high until it has melted. Stir in the Vitafiber (or other thicker sugar-free syrup) and microwave an additional 15-30 seconds or until the mixture just begins to bubble.
- Remove the bowl from the microwave and stir in the white chocolate. Continue to stir until the chocolate has melted. Once melted, stir in the cereal. Mix until combined
- Add a sheet of parchment paper to an 8 x 8 square baking dish or a 9 x 5 loaf pan. Scoop the crispy mixture into the parchment-lined baking dish and spread mixture evenly. Press down firmly using a spatula.
- Refrigerate for 2 hours or until set. Cut into squares.
- see post for tips and tricks
- see post for substitutions for different flavours
- Prep Time: 5 minutes
- Cook Time: 0 minutes
- Category: Breakfast, Snack, Dessert
- Method: No-Bake
- Cuisine: American
- Diet: Gluten Free
- Serving Size: 1 bar
- Calories: 97
- Sugar: 0.7
- Fat: 7.2
- Carbohydrates: 8.2
- Fiber: 6.1
- Protein: 6.8
Keywords: copycat Perfect Keto, mallow bar, keto, sugar-free, gluten-free, rice crispy treat, rice Krispy marshmallow squares, easy recipe, kid-friendly