Imagine yourself basking in the tropical sun, feeling the warmth on your skin, and savoring the taste of the tropics. That’s precisely what you’ll experience with the Key Lime Fudge. This delightful recipe transforms the classic decadence of white chocolate fudge into a zesty, tropical twist by infusing it with the fresh flavors of key lime. Bursting with the tangy zing of key lime juice and zest, this bright and cheerful treat is perfect for those days when you need a sweet escape. Not only does it satisfy your sweet tooth, but it also brings a touch of the exotic right into your kitchen.
This recipe is wonderfully straightforward, making it a fantastic choice for even the most novice of bakers. With no need for fancy equipment or complex techniques, you can have a batch of Key Lime Fudge chilling in your fridge in no time. The fusion of sweet and tangy flavors makes it an exquisite treat, perfect for gatherings, gifting, or just enjoying on your own. Its sumptuous, creamy texture combined with the invigorating citrus will make it a memorable favorite in no time.
The best part? This fudge is also vegetarian, making it a delightful and inclusive option for everyone to enjoy. So, whether you’re an experienced chef or a passionate beginner, embracing the tropical flavors of this dessert is a surefire way to impress yourself and any guests lucky enough to taste it.
Why You’ll Love This Key Lime Fudge
- Easy to Make: With a handful of ingredients and simple steps, this recipe is accessible to everyone.
- Tropical Flavor: The zesty key lime provides a fresh and exciting taste.
- Versatile: A perfect gift, party snack, or indulgent treat.
- Long-lasting: Keeps well in the fridge for when you need a quick sweet fix.
Preparation Phase & Tools to Use
Before starting the recipe, make sure your kitchen is prepped and ready for action to ensure a smooth cooking process. Lay out all the necessary ingredients and have your utensils ready to create this delectable dessert without any interruptions. Start with an 8×8-inch square baking dish, which will define the shape and size of your fudge squares. Line it with parchment paper, allowing some overhang on the sides to facilitate easy removal once the fudge is set. A saucepan will be needed for melting, and a spatula is essential for smoothing the fudge and ensuring a silky texture.
In terms of special tools, a zest grater will be invaluable for obtaining fresh key lime zest, adding fragrant bursts of flavor throughout the fudge. Additionally, whether you prefer fresh or bottled key lime juice, having a juicer handy can make the process smoother. With these tools in place, you’re well on your way to crafting a delectable batch of Key Lime Fudge.

Ingredients
- 3 cups white chocolate chips
- 1 (14 oz) can sweetened condensed milk
- 2 tablespoons unsalted butter
- 2 teaspoons key lime zest
- 1/4 cup key lime juice (fresh or bottled)
- 1/2 teaspoon vanilla extract
- Pinch of salt
- Optional: green food coloring (1-2 drops for a light tint)
Instructions
Step 1: Prepare the Dish
Take an 8×8-inch square baking dish and line it with parchment paper, ensuring that there is an overhang on the sides to make removal easier once the fudge has set.
Step 2: Melt the Ingredients
In a medium saucepan over medium-low heat, combine the white chocolate chips, sweetened condensed milk, and unsalted butter. Stir the mixture constantly to prevent burning, until everything is melted and smooth, creating a creamy base for your fudge.
Step 3: Flavor with Lime and Color
Once melted and smooth, remove the saucepan from heat. Stir in the key lime zest, juice, vanilla extract, a pinch of salt, and add a few drops of green food coloring if desired for a subtle hint of color. Mix gently until the ingredients are fully incorporated.
Step 4: Transfer and Set
Pour the fudge mixture into the prepared baking dish and smooth the top with a spatula to ensure an even surface. Place the dish in the refrigerator and allow it to chill for at least 3 hours, or until fully set. This chilling process is crucial for the fudge to become firm.
Step 5: Cut and Serve
Once set, use the parchment overhang to lift the fudge out of the dish. Place it on a cutting board and cut into small squares. Serve your refreshing Key Lime Fudge and enjoy!

Variations
- Protein: Enhance the texture by adding chopped nuts such as pecans or walnuts for a crunchy bite.
- Vegetables: While traditionally not included, consider adding a hint of grated carrot for a unique twist.
- Spices: Introduce a dash of cinnamon or ginger to add warmth and depth to your fudge.
Cooking Notes
- Ensure constant stirring while melting to avoid scorching the chocolate.
- Adjust the amount of key lime juice for a more pronounced lime flavor if desired.
- For a richer color, you can add a few more drops of food coloring.
Serving Suggestions
- Enjoy with a scoop of vanilla ice cream for a delightful dessert experience.
- Pair with a fresh fruit salad for a light summer treat.
Tips
- Allow the fudge to come to room temperature before cutting for cleaner slices.
- Store the fudge in an airtight container in the fridge for up to two weeks.
Prep Time, Cook Time, Total Time
- Prep Time: 10 minutes
- Cook Time: 10 minutes
- Total Time: 3 hours 20 minutes
Nutritional Information
- Calories: Approximately 100 per square
- Protein: 1g per square
- Sodium: 25mg per square
FAQs
Can I use regular lime instead of key lime?
Yes, you can substitute regular lime juice and zest if key limes are unavailable. The taste will be slightly different but still delicious.
How can I intensify the lime flavor?
To boost the lime flavor, you can add additional zest or a tiny bit more lime juice.
Is the food coloring necessary?
No, the food coloring is optional and only for aesthetic purposes. It does not affect the taste or texture.
How should I store leftover fudge?
Store any remaining fudge in an airtight container in the refrigerator to keep it fresh for up to two weeks.
Conclusion
Capturing the essence of tropical flavors in every bite, Key Lime Fudge is a heavenly indulgence that promises to please. Whether you’re a fan of the tangy lime or simply on the lookout for a delightful treat, this recipe not only caters to your taste buds but also adds a touch of exotic flair to your culinary repertoire. Share your creation at parties, gift it to friends, or simply savor each piece during your solo moments of indulgence. We guarantee that this fudge will become a staple in your dessert arsenal. Don’t forget to leave a comment or share your variations — we love hearing how you make recipes your own!
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Key Lime Fudge
- Total Time: 3 hours 20 minutes
- Yield: 24 squares 1x
Description
Capturing the essence of tropical flavors in every bite, Key Lime Fudge is a heavenly indulgence that promises to please.
Ingredients
- 3 cups white chocolate chips
- 1 (14 oz) can sweetened condensed milk
- 2 tablespoons unsalted butter
- 2 teaspoons key lime zest
- 1/4 cup key lime juice (fresh or bottled)
- 1/2 teaspoon vanilla extract
- Pinch of salt
- Optional: green food coloring (1-2 drops for a light tint)
Instructions
- Prepare the Dish: Take an 8×8-inch square baking dish and line it with parchment paper, ensuring that there is an overhang on the sides to make removal easier once the fudge has set.
- Melt the Ingredients: In a medium saucepan over medium-low heat, combine the white chocolate chips, sweetened condensed milk, and unsalted butter. Stir the mixture constantly to prevent burning, until everything is melted and smooth, creating a creamy base for your fudge.
- Flavor with Lime and Color: Once melted and smooth, remove the saucepan from heat. Stir in the key lime zest, juice, vanilla extract, a pinch of salt, and add a few drops of green food coloring if desired for a subtle hint of color. Mix gently until the ingredients are fully incorporated.
- Transfer and Set: Pour the fudge mixture into the prepared baking dish and smooth the top with a spatula to ensure an even surface. Place the dish in the refrigerator and allow it to chill for at least 3 hours, or until fully set. This chilling process is crucial for the fudge to become firm.
- Cut and Serve: Once set, use the parchment overhang to lift the fudge out of the dish. Place it on a cutting board and cut into small squares. Serve your refreshing Key Lime Fudge and enjoy!
Notes
Ensure constant stirring while melting to avoid scorching the chocolate.
- Prep Time: 10 minutes
- Cook Time: 10 minutes
- Category: Dessert
Nutrition
- Calories: 100 kcal
- Sodium: 25 mg
- Protein: 1 g