Key Lime Fudge

If you love tangy, creamy desserts, this Key Lime Fudge is going to be your new favorite treat! It’s smooth, melt-in-your-mouth creamy, and packed with zesty key lime flavor that gives it the perfect balance of sweet and citrusy.

Think of it as key lime pie in fudge form—no baking, no fuss, just pure tropical deliciousness!

Let’s make some fudge!

What You’ll Need

2 cups white chocolate chips
1 can (14 oz) sweetened condensed milk
2 tbsp unsalted butter (melted)
¼ cup key lime juice (fresh is best!)
1 tbsp key lime zest (plus more for garnish)
1 tsp vanilla extract
A few drops of green food coloring (optional, for a soft lime color)
¼ tsp salt
Optional topping: Crushed graham crackers, extra lime zest, or a drizzle of white chocolate

Pro Tips

Use fresh key limes! Bottled juice works, but fresh juice gives the best tangy flavor.
Melt the chocolate slowly. White chocolate can burn easily, so use low heat and stir constantly.
Let it set completely. Refrigerate for at least 2 hours before cutting to get perfect slices.
For extra key lime pie vibes, sprinkle crushed graham crackers on top before chilling.
Want it extra tangy? Add ½ tsp of lime extract for a bigger citrus punch!

Tools You’ll Need

Medium saucepan
Spatula
8×8-inch baking dish
Parchment paper
Knife for cutting

Substitutions & Variations

Dairy-free option: Use dairy-free white chocolate and coconut condensed milk.
Sweeter version: Drizzle melted white chocolate over the top before chilling.
Crunchy version: Stir in crushed vanilla wafers or chopped macadamia nuts.
Extra tart: Mix in ½ tsp lemon zest for a citrusy blend.

Instructions

1. Melt the chocolate.

In a saucepan over low heat, melt white chocolate chips, sweetened condensed milk, and butter, stirring constantly until smooth.

A super close-up, top-down shot of a spatula stirring melted white chocolate, sweetened condensed milk, and butter in a saucepan

2. Add the key lime flavor.

Remove from heat and stir in key lime juice, lime zest, vanilla extract, salt, and food coloring (if using).

A super close-up, top-down shot of key lime juice being poured into the creamy white fudge mixture,

3. Pour into the pan.

Line an 8×8-inch baking dish with parchment paper, then spread the fudge evenly.

A super close-up, top-down shot of a spatula spreading thick key lime fudge into a parchment-lined baking dish

4. Add toppings.

Sprinkle extra lime zest and crushed graham crackers on top for extra flavor.

A super close-up, top-down shot of crushed graham crackers and fresh lime zest being sprinkled over the fudge

5. Chill and set.

Refrigerate for at least 2 hours or until firm.

A super close-up, top-down shot of a baking dish covered with plastic wrap, resting in the fridge

6. Cut and serve.

Once set, lift the fudge out using the parchment paper, cut into squares, and enjoy!

A super close-up, top-down shot of Key Lime Fudge squares stacked on parchment paper, the edges clean and smooth,

Leftovers & Storage

Store in an airtight container in the fridge for up to 1 week.
Want to keep it longer? Freeze the fudge for up to 3 months and thaw before serving.

Wrap-Up

And that’s it—your Key Lime Fudge is ready to enjoy! It’s sweet, tangy, and packed with key lime pie flavor in every bite. Try it out, take a pic, and let me know how it turned out. Happy snacking! 🍋✨