
I took my go-to summer pie and totally flipped it into the best fudge ever. The zingy lime with all that smooth sweetness will have your taste buds doing a happy dance. When I show up at a get-together with this, folks just keep sneaking more pieces. Seriously, once you taste it, you'll want more!
Irresistible Reasons to Try This
That bright lime and sweet white chocolate combo is out of this world. Imagine if pie and fudge teamed up! Plus, it's way simpler to pull off than you'd think. My kids go nuts squeezing limes and everyone dives for the mixing spoon.
What to Grab
- Pep Up: 2 teaspoons grated lime peel
- Zing Juice: 1/4 cup squeezed key lime juice
- Mini Fluffs: 2 cups tiny marshmallows
- Pantry Grab: 2/3 cup unsweetened evaporated milk
- White Choc: 1 1/2 cups white chocolate bits
- Plain Old Sugar: 2 cups granulated sugar
- Salt Kick: 1/4 teaspoon salt
Dreamy Steps to Follow
- Dig In
- Slice the cooled fudge into little squares and watch them vanish. Stash any leftovers in the fridge if nobody eats them all first.
- Let It Set
- After pouring in your mix, even out that top. Leave it on the counter awhile, then chill in the fridge so it firms up.
- Mix Goodies In
- Lift your pot off the heat and add the rest—lime, marshmallows, zest, chocolate. Stir until glossy and dreamy.
- Warm It Up
- In a pot, whisk together the milk, salt, and sugar. Stir as it heats. Let it bubble, then keep going for 8 minutes. Your arm might feel it, but it's so good!
- Line It Up
- First, grab some parchment and line your pan. Makes getting fudge out a breeze later!
Make It Yours
Out of key limes? Use regular limes, they're fine! A little green coloring jazzes it up, and smashing up graham crackers on top turns it into a pie bomb!
My Favorite Tricks
Zest is a must for the best flavor, don't skip it! Stir as it cooks so it stays smooth. And if you need a shortcut, that Nellie & Joe's bottled juice is a lifesaver!
Keep It Tasty
Tuck your fudge in a container in the fridge and it'll be good for weeks. Want to save some? Wrap up pieces and freeze them, with paper in between so they don't glue together!
Change It Up
Top it off with graham crumbs for those pie vibes. Want it tropical? Toss in coconut. Or melt a little white chocolate and swirl it on for extra wow!
Stuff to Grab First
You just need a decent-sized pot, a spatula, maybe a thermometer, plus an 8x8 pan and parchment. Trust me, parchment saves you!
Awesome for Every Occasion
Summer bashes, holidays, whenever—this fudge is always the star. I like gifting it in cute bundles because that sweet and tart mashup is everyone’s favorite!

Frequently Asked Questions
- → Can I use regular limes instead of key limes?
Totally, you can swap in regular limes. Maybe use a touch less juice since they’re usually milder than key limes.
- → Why use marshmallows in fudge?
They help your fudge stay creamy and smooth while stopping it from getting too grainy or crumbly.
- → Why line the pan with foil?
It makes pulling the fudge out so much easier! Grease it first so nothing sticks and you get nice, neat pieces.
- → Do I really need to stir constantly?
Always keep stirring, or you’ll risk burning it. This step is what makes the texture just right!
- → How do I know it's ready without a thermometer?
After letting it bubble 5-6 minutes, it’ll get a bit thick and look a tad darker—timing’s usually enough if you don’t have a thermometer.