
I've transformed my summertime pie favorite into this incredible fudge creation! The tangy lime blended with smooth creaminess makes your mouth water with each bite. People always sneak back for seconds whenever I bring this treat to gatherings. Once you sample it, you'll be completely addicted!
What Makes This So Irresistible
The combination of zesty lime with creamy white chocolate creates pure magic. It's like the perfect marriage between your favorite pie and fudge! And it's way simpler to make than you might expect. My children always want to help squeeze those limes, and nobody can resist trying to get the last lick of the mixing spoon.
Your Ingredient List
- Dairy Base: 2/3 cup evaporated milk (regular, not sweetened)
- Sweetener: 2 cups granulated sugar
- Seasoning: 1/4 teaspoon salt
- Soft Stuff: 2 cups mini marshmallows
- Sweet Chips: 1 1/2 cups white chocolate chips
- Fruit Juice: 1/4 cup fresh key lime juice
- Flavor Boost: 2 teaspoons lime zest
Simple Preparation Steps
- Prep Work
- Put parchment paper in your pan first this makes removing the fudge super easy afterward!
- Begin The Mix
- Combine milk, sugar, and salt in your pot. Stir constantly while heating until bubbles form. Continue stirring for another 8 minutes your arm will get tired but the results are amazing!
- Mix Everything
- Remove from heat and add all remaining ingredients marshmallows, white chocolate, lime juice, and zest. Keep stirring until everything looks smooth and shiny.
- Cool Down
- Transfer to your prepared pan and level the surface. Let it cool at room temperature before moving to the fridge to set completely.
- Enjoy Your Creation
- Slice into squares and watch how quickly they vanish! Store any leftovers in the fridge if they actually last!
Customize Your Treat
No key limes available? Standard limes work just fine! Sometimes I add a tiny bit of green food coloring for visual appeal, and sprinkling crushed graham crackers on top gives that authentic pie taste!
Pro Tricks
Never skip using fresh lime zest it completely transforms the flavor! Make sure you don't stop stirring during cooking or you'll end up with lumps. In a time crunch? Nellie & Joe's bottled key lime juice works wonderfully!
Storage Advice
Store your fudge in a container in the refrigerator it'll stay delicious for up to two weeks. Want to save some for later? Wrap it carefully and freeze it. Just don't forget to place wax paper between layers so they won't stick together!
Tasty Variations
Try adding crushed graham crackers on top for that authentic pie experience. Love coconut? Mix some in! I sometimes drizzle extra melted white chocolate across the top it looks super impressive!
Tools For Success
You'll want a good cooking pot, sturdy spatula, and candy thermometer if you have one. Don't forget an 8x8 baking dish and parchment paper they'll make your life so much easier!
Crowd-Pleasing Dessert
This fudge becomes the hit of any gathering from summer cookouts to winter celebrations. I love packaging small batches as gifts the sweet-tangy flavor combo always gets rave reviews!

Frequently Asked Questions
- → Can I swap key limes with regular ones?
Sure, regular limes work too! They’re usually a bit less tangy, so adjust the amount of juice to taste.
- → What do marshmallows add to this fudge?
They keep the fudge smooth, help stabilize it, and stop sugar crystals from showing up.
- → Why line the pan with foil first?
It’s way easier to lift out the fudge later, plus cutting it becomes super neat. Just butter it to avoid sticking.
- → Is stirring the mixture really necessary?
It sure is! Stirring keeps the blend smooth, stops burning, and gets the texture just right. Don’t skip it.
- → What if I don’t have a kitchen thermometer?
If you boil for 5–6 minutes and the mix thickens, you’re good to go. Just keep the heat steady and watch the color.