Lemon Rice Krispie Treats

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Lemon Rice Krispie Treats have a chewy texture and buttery marshmallow flavor, plus a zesty lemon twist for extra flavor. If you love lemon, these are a must-make!

For another lemony treat, try this Lemon Chiffon Pie. My Lemon Brownies are a reader favorite too!

Lemon krispie treats cut into 9 large bars.
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Why You’ll Love These Lemon Rice Crispy Treats

If you’ve been a reader for a while, you probably know that Rice Krispie treats are my weakness.

Whether it’s Strawberry Krispie Treats, Fluffernutter Rice Krispie Treats, or Cherry Rice Crispy Treats, I will gladly take them all! These Lemon Rice Krispie Treats are my latest and greatest.

I’m not sure why I didn’t think of these sooner because the flavor of classic Rice Krispie treats pairs beautifully with lemon! Like Lemon Bars, they have that buttery-sweet-tart contrast going for them.

  • Quick and Easy to make!
  • With lemon zest, juice, and lemon extract, these Rice Krispie treats are full of bright citrus flavor.
  • These treats are always a hit for potlucks, picnics, and backyard barbecues—and they’re easy to transport too! 

Important Ingredient Notes

Ingredients needed to make lemon rice krispie treats.
  • Lemon – You’ll need the juice and the zest, but zest the lemon first. It’s much easier that way!
  • Salted butter – Most baking recipes use unsalted butter, but I prefer salted because it adds some balance to the dish.
  • Mini marshmallows – Make sure they are fresh! Stale marshmallows can ruin Rice Krispie treats.
  • Extracts – You’ll need both lemon and vanilla extract. Lemon extract adds a stronger lemon flavor than juice without adding a lot of excess liquid.
  • Rice Krispies cereal – Normally I’m not a stickler for name brands, but I make an exception for Rice Krispy treats. Some of the off-brand versions have a slightly different texture.

How to Make Lemon Treats

  • Make the Topping: Combine a tablespoon of sugar with lemon zest and stir. Set it aside.
  • Make the Glaze: In another bowl, whisk the lemon juice and zest. Set it aside.
Step by step photos showing how to make lemon rice krispie treats.
  1. Heat the Marshmallow Mixture: Melt the butter in a saucepan set over medium heat, then add all but 1 cup of the marshmallows. Reduce the heat to low and stir until the marshmallows are completely melted. Remove from heat.
  2. Finish the Rice Krispie Mixture: Stir in the lemon and vanilla extracts, followed by the cereal and remaining marshmallows.
  3. Transfer to Pan: Pour the mixture into a parchment-lined 9-inch square baking dish, pressing it gently with your fingertips to spread it evenly.
  4. Set: Drizzle with the lemon glaze, then add the lemon sugar mixture. Allow the lemon Rice Krispie treats to set for about 1 hour before cutting and serving.

You can also drizzle white chocolate on these bars for a decadent no bake dessert!

Lemon rice crispy treats cut into squares.

Tips and Tricks

  • Here’s how to zest a lemon; you’ll get about 1 teaspoon of zest from a single lemon.
  • In addition to the marshmallows, make sure the cereal is also fresh. If it’s been sitting open in the box for several weeks, your Rice Krispie treats will be missing the crispy!
  • I like to add the lemon glaze while the Rice Krispie treats are warm because it seeps down into them, making them extra delicious. If you prefer a more “finished” look, you can wait to add the toppings. Slice into bars then top each one with glaze and sugar after they have cooled and set.
  • Store the lemon Rice Krispie treats in a sealed container at room temperature for a few days. Alternatively, you can freeze them in a ziploc bag for up to 3 months. If you have to stack them in the bag or container, put parchment paper between the layers to prevent sticking.

More Rice Krispie Treat Recipes

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Lemon Rice Krispie Treats Recipe

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By: Aimee
Lemon Rice Krispie Treats have a chewy texture and buttery marshmallow flavor, plus a zesty lemon twist for extra flavor. If you love lemon, these are a must-make!
Prep Time: 8 minutes
Cook Time: 5 minutes
Resting Time: 1 hour
Total Time: 1 hour 13 minutes
Servings: 18 bars

Ingredients 

  • 1 lemon, zested and juiced, see notes
  • 1 Tablespoon granulated sugar
  • ½ cup powdered sugar
  • 6 Tablespoons salted butter
  • 16 ounce bag mini marshmallows, divided
  • ½ teaspoon lemon extract
  • ½ teaspoon vanilla extract
  • 6 cups rice krispies cereal
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Instructions 

  • Start by making the lemon topping. Zest one lemon in a small bowl. Add 1 Tablespoon of granulated sugar and mix with a spoon until crumbly and combined. Set aside.
  • Juice the same lemon in a small bowl. Add in powdered sugar and whisk until smooth. Set aside.
  • Line a 9-inch square baking dish with parchment paper. Set aside.
  • In a large saucepan, melt butter over medium heat. Once melted, add in all but 1 cup of the mini marshmallows, reducing heat to low. Stir with a spatula until marshmallows are completely melted. Remove from heat.
  • Add in lemon and vanilla extracts, stir until blended. Add cereal and remaining one cup of mini marshmallows, stirring gently until combined.
  • Pour mixture in prepared baking dish, pressing gently with your fingertips until spread out. Immediately drizzle with the lemon glaze, then add the lemon sugar mixture.
  • Allow krispie treats to set for about one hour. Cut and enjoy.

Notes

  • For the whole lemon, zest the lemon using our guide on how to zest a lemon. You’ll get about 1 teaspoon of zest. For the lemon juice, you’ll get about 1 Tablespoon juice.
  • Be sure to use fresh marshmallows and fresh cereal. Using stale ingredients will result in stale treats.
  • Adding the lemon glaze while the krispie treats are warm allows the fresh citrus flavor to sink into the krispie treats. If you prefer a more “finished” look, you can wait to add the toppings. Slice into bars then top each one with glaze and sugar after they have cooled and set.
  • Store lemon krispie treats in airtight container at room temperature for several days.
  • You can also freeze krispie treats by sliding into a ziploc bag. Freeze for up to 3 months.

Nutrition

Serving: 1slice
Course: Rice Krispie Treats
Cuisine: American
Did you make this recipe?Mention @shugarysweets or tag #shugarysweets!
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About Aimee

Aimee is a dessert lover (specifically rice krispie treats), workout enthusiast, self-taught foodie, and recipe creator.

Learn more about Aimee.

Affiliate Disclosure:**There may be affiliate links in this post! By clicking on them, or purchasing recommended items I may receive a small compensation. However, I only recommend products I love! Thank you for supporting Shugary Sweets! See my disclosure policy for more info**

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Posted on May 20, 2024

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