I love all things Key Lime and this Key Lime Pie Rice Krispies Treats is an easy dessert recipe and the best easy snacks you can make for summer snacks!
I could practically taste the Key Lime just looking at the photos...fortunately for me, my neighbor has a very large Key Lime tree that mostly hangs over MY fence - so I get all the Key Limes I want, whenever I want - for free!

Why we love this Key Lime Pie Rice Krispie Treats Recipe
Have you ever tried experimenting with making different flavors of rice Krispie treat before?
I've added things like chocolate chips or a touch of cocoa powder...but these Key Lime Pie Rice Krispie Treats just brings it all to a whole new level!
It really is just like a tiny, crunchy slice of Key Lime pie in the palm of your hand.
My sad update about that Key Lime Tree
Update....and a very sad update, unfortunately. I wrote this post a very long time ago - 9 years ago, to be exact.
AND THOSE NEIGHBORS SOLD THE HOUSE AND THE NEW PEOPLE CUT THE TREE DOWN. Now I have to buy key limes.
Whatever. I am getting over it. It's been three years and I am still bringing it up, but it's something I am working on.
Are you looking for more easy snacks like our Key Lime Pie Rice Krispie Treats?
WE LOVE SNACKS! I love snacks, you love snacks, I think that it's pretty safe to say that we all love snacks.
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How to Make Key Lime Pie Rice Krispie Treats
Even if your new mean neighbors tear down the tree that you used to get free key limes from.
Ingredients you will need to make Key Lime Pie Rice Krispie Treats
- 6 cups Rice Krispies Cereal
- 1 stick salted butter
- 4 cups miniature marshmallows
- 3 ounce box of powdered Lime Jell-O
- 1 tbs granulated sugar
- 1 sleeve graham crackers (9 full sheets) **I used Honey Maid**
- 1 small jar of Marshmallow Creme **I used Kraft Jet-Puffed**
- 1 lime
For the crust:
In the microwave, melt 5 tbs salted butter in a medium sized bowl. This should take about fifty seconds.
With a sharp knife, cut nine 1" x 1" squares of graham crackers for your garnish.
Pulse the remaining graham crackers in food processor until they are fine crumbs.
Add your graham cracker crumbs and 1 tbs sugar to your bowl of melted butter and stir to combine.
Spray an 8 x 8 baking pan with non-stick cooking spray.
Press the graham cracker mixture into the bottom of the pan to form the pie crust.
For the Key Lime Krispies
Melt 3 tbs butter in a large saucepan.
Add 4 cups mini marshmallows and stir constantly until melted.
Remove from heat.
Add 3 tbs of the Lime Jell-o powder to your melted marshmallows and stir to combine.
Add 6 cups Rice Krispies cereal to the marshmallow mixture and stir until all the cereal is coated.
Turn that mixture onto your graham cracker crust and use a piece of wax paper to press the cereal mixture down firmly.
Once your treats have cooled completely, score the top so you have nine squares.
Top each square with a dollop of marshmallow creme, a fresh lime wedge and your reserved 1" x 1" graham cracker squares.
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To print this Rice Krispies Treats Recipe, simply click the recipe card below!
I know that many people still like to print out recipes and keep them in a recipe binder, or simply have the printed recipe sitting in front of them when it comes time to cook! You can also email this recipe!
Key Lime Pie Rice Krispie Treats Recipe
Ingredients
- 6 cups Rice Krispies Cereal
- 1 stick salted butter
- 4 cups miniature marshmallows
- 3 ounce box of powdered Lime Jell-O
- 1 tbs granulated sugar
- 1 sleeve graham crackers 9 full sheets **I used Honey Maid**
- 1 small jar of Marshmallow Creme **I used Kraft Jet-Puffed**
- 1 lime
Instructions
- For the crust:
- In the microwave, melt 5 tbs salted butter in a medium sized bowl. This should take about fifty seconds.
- With a sharp knife, cut nine 1" x 1" squares of graham crackers for your garnish.
- Pulse the remaining graham crackers in food processor until they are fine crumbs.
- Add your graham cracker crumbs and 1 tbs sugar to your bowl of melted butter and stir to combine.
- Spray an 8 x 8 baking pan with non-stick cooking spray.
- Press the graham cracker mixture into the bottom of the pan to form the pie crust.
- For the Key Lime Krispies:
- Melt 3 tbs butter in a large saucepan.
- Add 4 cups mini marshmallows and stir constantly until melted.
- Remove from heat.
- Add 3 tbs of the Lime Jell-o powder to your melted marshmallows and stir to combine.
- Add 6 cups Rice Krispies cereal to the marshmallow mixture and stir until all the cereal is coated.
- Turn that mixture onto your graham cracker crust and use a piece of wax paper to press the cereal mixture down firmly.
- Once your treats have cooled completely, score the top so you have nine squares.
- Top each square with a dollop of marshmallow creme, a fresh lime wedge and your reserved 1" x 1" graham cracker squares.
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