Key Lime Fudge Recipe (2024)

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Learn how to make key lime fudge with these easy step-by-step recipe instructions. Sweet and tangy and oh so fragrant this lime fudge recipe is addicting. Simple to make, this fudge recipe is terrific for sharing, gifting, or when you want to indulge at home.

Key Lime Fudge Recipe

This easy lime fudge recipe is a sweet treat the whole family will enjoy. Made with fairly common ingredients, you can make this easy recipe with your children or grandchildren – this is such a simple recipe that nearly anyone can make it!

How to make Key Lime Fudge:

1. Prep – Spray an 8×8 pan with non-stick spray, line it with parchment paper, and get a double boiler going.
2. Melt the white chocolate, add sweetened condensed milk, add key lime juice, and key lime zest, and mix.
3. Pour the mixture into the bottom of the prepared pan, smooth, and garnish.
4. Chill – Let the fudge chill for 6 hours or until completely firm.
5. Cut – Once firm, remove the fudge and slice the fudge recipe on a cutting board. Enjoy!

What is the difference between key limes and limes?

Key limes – the name comes from their close association to the Florida Keys – are also known as West Indian lime, bartender’s lime, Omani lime, or Mexican lime (Citrus x aurantifolia). Key limes are smaller, seedier, tarter, and have a thinner rind than the Persian lime we purchase regularly at the store. The Key lime is picked while green and turns yellowish as it ripens. Persian limes (Citrus x latifolia) are what we think of as regular limes and commonly available for purchase in local grocery stores, have fewer seeds, are sweeter, and are larger in size.

If you enjoy making homemade fudge recipes, try these easy fudge recipes:

Strawberry Fudge Recipe
Salted Dark Chocolate Bourbon Fudge Recipe
Chocolate Amaretto Swirl Fudge Recipe

Tips and variations for making this Key Lime Fudge Recipe:

● Double boiler – The only thing you have to watch for is that your chocolates are melting at pretty much the same rate in the double boiler. And please use a double boiler and do not try melting the chocolate in a microwave. The double boiler will prevent burning and hardening, and the microwave… does not.
● Zest the key limes from the lime rind before extracting the juice. The difference between the lime peel and the lime rind is that the peel includes all parts of the exterior of the lime, including the white pith. The rind is the color that you zest.
● The two (2) large key limes should render the four (4) tablespoons of juice necessary to make this recipe.
● Substituting limes for key limes will make this less sweet-tart. Not a bad thing. Some people mix ½ lemon juice, ½ lime juice to approximate the taste of key lime juice.
● Do not overcook – As soon as the chocolate chips melt, add the sweetened condensed milk, give it a stir, and get it off that heat.
● This is not a key lime pie fudge recipe. That would involve a bottom layer crust, usually Graham cracker crust. If you would like to add that, make certain it is baked before proceeding with this recipe.

● If you plan on making 36 servings, that is cutting 6 rows x 6 rows. If you plan on making 25 servings, that is cutting 5 rows by 5 rows.
● Place one sheet of parchment paper across the pan. Place the second sheet of parchment paper across the first sheet (to form an +).
● It is best if the rest of the ingredients are not altered as they specifically complement or counteract each other in the perfect manner. I would not be able to offer any other suggestions as substitutions that would work in the same manner.
● Fudge can be stored in the fridge or freezer in an airtight container. It will last up to two weeks in either situation. Do not store fudge at room temperature.

Key Lime Fudge Recipe Ingredients:

● 24 oz White Chocolate Chips
● 14 oz Sweetened Condensed Milk
● 4 TBSP Fresh Key Lime Juice
● Zest of 2 Large Key Limes

Key Lime Fudge Mise en Place:

Spatula
● Spoon
Measuring Cup
Measuring Spoons
8″x8″ Cake Pan
● Double Boiler
Parchment Paper

Key Lime Fudge Recipe Directions:

1. Lightly grease an 8″ x 8″ square pan and line it with parchment paper (in the shape of a +). Set aside.

2. Over medium heat boil the water in your double boiler. In the double boiler upper container (or a bowl snugly fitted over a saucepan filled with simmering water), melt the chocolate chips and sweetened condensed milk.

3. When the chips are melted, add in the key lime juice and the key lime zest. Reserve ½ teaspoon of the lime zest for garnish. Mix until well combined.

4. Spread the key lime fudge mixture in the prepared pan. Smooth the top with a spatula.

5. Sprinkle the remaining key lime zest, evenly on the top of the fudge.
6. Allow the key lime fudge to chill in the fridge for 6 hours, up to overnight.

7. Remove the fudge by picking up the ends of the parchment paper. Place on a cutting board and using a sharp knife cut into 25 (5×5) or 36 (6×6) even squares.

8. Serve immediately.

9. Store the leftovers in an airtight container in the fridge.

Yield: 1

Key Lime Fudge Recipe

Key Lime Fudge Recipe (15)

Key Lime Fudge Recipe. Learn how to make key lime fudge with these easy step-by-step recipe instructions. Sweet and tangy and oh so fragrant this lime fudge recipe is addicting. Simple to make, this fudge recipe is terrific for sharing, gifting, or when you want to indulge at home

Prep Time15 minutes

Cook Time5 minutes

Additional Time6 hours

Total Time6 hours 20 minutes

Ingredients

  • 24 oz White Chocolate Chips
  • 14 oz Sweetened Condensed Milk
  • 4 TBSP Fresh Key Lime Juice
  • Zest of 2 Large Key Limes

Instructions

    1. Lightly grease an 8″ x 8″ square pan and line it with parchment paper (in the shape of a +). Set aside.
    2. Over medium heat boil the water in your double boiler. In the double boiler upper container (or a bowl snugly fitted over a saucepan filled with simmering water), melt the chocolate chips and sweetened condensed milk.
    3. When the chips are melted, add in the key lime juice and the key lime zest. Reserve ½ teaspoon of the lime zest for garnish. Mix until well combined.
    4. Spread the key lime fudge mixture in the prepared pan. Smooth the top with a spatula.
    5. Sprinkle the remaining key lime zest, evenly on the top of the fudge.
    6. Allow the key lime fudge to chill in the fridge for 6 hours, up to overnight.
    7. Remove the fudge by picking up the ends of the parchment paper. Place on a cutting board and using a sharp knife cut into 25 (5×5) or 36 (6×6) even squares.
    8. Serve immediately.
    9. Store the leftovers in an airtight container in the fridge.

Notes

Substituting Persian limes for key limes will make this less sweet-tart. Not a bad thing. Some people mix ½ lemon juice, ½ lime juice to approximate the taste of key lime juice.

Nutrition Information:

Yield:

36

Serving Size:

1

Amount Per Serving:Calories: 150Total Fat: 7gSaturated Fat: 4gTrans Fat: 0gUnsaturated Fat: 2gCholesterol: 9mgSodium: 36mgCarbohydrates: 20gFiber: 0gSugar: 19gProtein: 2g

Note: for exact nutritional information, consult your dietitian. All nutritional information provided is simply a guideline.

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Key Lime Fudge Recipe (2024)

FAQs

What is key lime fudge made of? ›

How do you make Key Lime Fudge? Evaporated milk, sugar and salt are heated together in a saucepan and boiled for 8 minutes. Once that mixture has boiled for several minutes, it'll be piping hot. At that point, you'll pull the pan off the stove and stir in marshmallows, white chocolate, lime zest and lime juice.

Can you use regular lime juice instead of key lime juice? ›

Ordinary limes make an exceptional Key lime pie, and they are a much better alternative to bracingly tart bottled Key lime juice. This pie tastes every bit as authentic as the real deal — plus it's easier to make.

What is the difference between key lime and lime flavor? ›

Key limes tend to be small and seedy, with a distinctive lime flavor that is tart but not too acidic. They also have a distinct aroma, far more aromatic than common limes. 2 Grocery store limes, generally speaking, are Persian limes, the most widely commercially cultivated variety of lime.

Is Nellie and Joe's real key lime juice? ›

Nellie & Joe's originated as the southernmost bottling company in the United States. Founded in 1968 as a family-owned business and the source of the “original” Key West Lime Juice, we've expanded our product line to include Nellie & Joe's Key West Lemon Juice, Mango Key Lime Juice, and Key West Style Marinades.

Why is Publix key lime pie so good? ›

Rather, the key to perfecting the Publix key lime pie is a simple ingredient added to the graham cracker crust. It's not the graham crackers themselves that make the crust special, but rather the unique addition of crushed toasted almonds.

What is so special about key lime pie? ›

The filling in a Key lime pie is typically yellow because of the egg yolks. The filling is made similarly to a Magic Lemon cream pie, by simply mixing the ingredients without cooking: the proteins of the egg yolks and condensed milk and the acidic lime juice curdle, thickening the mixture without baking.

Are key limes from the Florida Keys? ›

Although Key limes are native to South Asia, they were introduced in the Florida Keys in 1838 and became naturalized there, according to the University of Florida, Institute of Food and Agricultural Sciences Extension.

What flavor goes with key lime? ›

What Flavors Go Well With Key Lime? Key limes are delicious with coconut, blueberries and raspberries. By itself, the lime can be very tart, but it works nicely with the rich, sweet flavor of coconut. Try pairing Key lime and coconut in a scone, or with blueberries in a Key Lime Pie.

Why are key limes so good? ›

Research published in Pharmacognosy Review reveals that, when used daily, key lime has antibacterial, anticancer, anti-diabetic, antifungal, anti-inflammatory and antioxidant effects. It provides metabolites that help protect the body from disease.

Can key lime juice go bad? ›

However, it is best to consume within 6 months for optimum quality. Once opened, key lime juice should be used within 1-2 weeks if kept in the refrigerator. It can also be frozen for up to 6 months.

Should key limes be refrigerated? ›

According to UC Davis's Postharvest Technology Center, lemons, limes, oranges, and grapefruits can (and should, for best quality) be kept at room temperature if you plan to eat them within a week of purchase.

Are Mexican limes key limes? ›

Key limes—also known as Mexican limes or West Indies limes—are small, spherical limes that grow in tropical and subtropical regions. They're light yellow (not green) when ripe and contain more seeds than regular limes. Their skin is also very thin, which means they don't store well.

What are key limes made of? ›

Key lime is probably a tri-hybrid intergeneric cross (a three-way hybrid involving three plant species and at least two different genera) of citron (Citrus medica), pummelo (Citrus grandis), and a microcitrus species, Citrus micrantha.

What is Key lime pie filling made of? ›

Key lime pie ingredients are simple: sweetened condensed milk, lots of lime zest and juice (preferably from key limes), and just enough egg to give it a good set. Pour the filling into a pre-baked graham cracker crust, bake briefly until the pie is set, and let it chill. Top the pie with whipped cream and serve.

What is fudge made of? ›

Fudge is a dense, rich confection typically made with sugar, milk or cream, butter and chocolate or other flavorings. The base for fudge is boiled until it reaches the soft-ball stage (135 to 140 degrees F), then stirred or beaten as it cools to minimize the formation of sugar crystals.

What does key lime dessert taste like? ›

Key lime pie is very creamy in texture, almost like a cross between a cheesecake and cream pie. It's light in color and the flavor is tart and sweet. The dairy in the pie combined with the zestiness of the key limes creates one refreshing aftertaste.

References

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