If you’ve ever dreamed of biting into a rich, creamy, chocolatey treat that melts in your mouth and leaves you craving more, then this Decadent Mackinac Island Fudge Recipe is going to be your new best friend in the kitchen. This classic fudge brings together just the right balance of sweetness, buttery smoothness, and a luscious marshmallow fluff finish that captures the very soul of the famous Mackinac Island indulgence. It’s a timeless recipe that’s surprisingly simple to make but delivers a gorgeously indulgent result that’s perfect for sharing—or savoring all by yourself.

Ingredients You’ll Need
What makes this fudge so extraordinary is how a handful of simple, high-quality ingredients come together to create a creamy, velvety texture and an irresistible depth of flavor. Every component plays a vital role, from the rich butter that provides silkiness to the marshmallow crème that adds that signature fluffy softness.
- 3 cups granulated sugar: Gives the fudge its classic sweetness and structure.
- ¾ cup unsalted butter (1 ½ sticks): Adds creamy richness and smooth texture.
- â…” cup evaporated milk: Provides the perfect moisture and subtle creaminess without being too heavy.
- 1 (12 oz) package semi-sweet chocolate chips: The heart of the recipe, delivering deep chocolate flavor and a luscious finish.
- 1 (7 oz) jar marshmallow crème (marshmallow fluff): Creates the signature soft and fluffy texture unique to Mackinac Island fudge.
- 1 teaspoon vanilla extract: Enhances the overall flavor with a warm, aromatic touch.
- Optional: ½ cup chopped walnuts or pecans: Adds a delightful crunch and nutty contrast if you want a bit of texture.
How to Make Decadent Mackinac Island Fudge Recipe
Step 1: Prepare the Pan
Start by lining a 9×13-inch baking dish with parchment paper or foil, leaving some overhang on the sides. This little trick will make it super easy to lift out the fudge once it’s set, and it will keep the edges nice and neat for cutting into those perfect little squares.
Step 2: Cook the Sugar Mixture
In a large, heavy-bottomed saucepan over medium heat, combine the granulated sugar, unsalted butter, and evaporated milk. Stir constantly so everything melts evenly and the mixture heats smoothly. Once it starts to boil, you’re one step closer to that silky fudge magic.
Step 3: Boil and Stir
Once boiling, keep stirring for 4 to 5 minutes, making sure the heat is steady and the mixture doesn’t stick. If you have a candy thermometer, aim for the soft-ball stage—that’s between 234 and 240 degrees Fahrenheit. This step is crucial because it sets the fudge’s perfect creamy firmness.
Step 4: Add Chocolate Chips
Remove the saucepan from the heat and immediately stir in the semi-sweet chocolate chips. Keep stirring until the chocolate melts fully and the mixture is luxuriously smooth and glossy. This is when that irresistible chocolate aroma fills your kitchen!
Step 5: Stir in Marshmallow and Vanilla
Now, fold in the marshmallow crème and vanilla extract until everything is completely combined and creamy. This is the moment where the fudge really starts to feel soft, fluffy, and unique. If you’re adding nuts, gently fold them in here, making sure they’re evenly dispersed.
Step 6: Spread and Cool
Pour the fudge mixture into the prepared pan and smooth the top evenly with a spatula. Let it sit at room temperature for 4 to 6 hours until it firms up nicely. If you’re impatient (and who isn’t when it comes to fudge?), you can pop it in the fridge for 2 to 3 hours to speed things along.
Step 7: Slice and Serve
Once your fudge is set, lift it out of the pan using the parchment or foil overhang and place on a cutting board. Slice into 36 delightful little squares and get ready to enjoy one of the most heavenly treats you’ve ever made at home.
How to Serve Decadent Mackinac Island Fudge Recipe

Garnishes
While this fudge is delicious on its own, you can add a fancy touch with a sprinkle of sea salt or a dash of finely chopped nuts right on top. A light dusting of cocoa powder or a drizzle of white chocolate can also turn each square into a little work of edible art that’s as pleasing to the eye as it is to the palate.
Side Dishes
This fudge pairs wonderfully with a cup of rich coffee or a creamy hot chocolate. It’s also a lovely companion to a scoop of vanilla ice cream or fresh berries to balance out its sweetness with some fresh, fruity brightness.
Creative Ways to Present
For gifting or party treats, arrange fudge squares in a decorative tin or wrap each piece in wax paper or colorful cellophane tied with ribbons. You can also layer strips of parchment in a pretty box, making every bite feel extra special and festive.
Make Ahead and Storage
Storing Leftovers
Your Decadent Mackinac Island Fudge Recipe will keep beautifully stored in an airtight container at room temperature for up to two weeks. Keeping it away from heat and humidity ensures the fudgy texture stays just right and doesn’t dry out.
Freezing
If you want to keep fudge for longer, it freezes wonderfully. Wrap the fudge tightly in plastic wrap and then place it in a freezer-safe container or ziptop bag. It can easily last for up to three months and still taste freshly made once thawed.
Reheating
While fudge is best enjoyed straight from the container or chilled, if you prefer it a bit softer, let it sit at room temperature for a little while or warm it gently in your hands before eating. Avoid microwaving, which can make it grainy or melt too much.
FAQs
What makes Mackinac Island fudge different from regular fudge?
The key difference is the addition of marshmallow crème, which gives the fudge a uniquely creamy, soft, and fluffy texture that melts in your mouth, setting it apart from denser, grainier regular fudge recipes.
Can I use milk chocolate instead of semi-sweet chocolate chips?
Absolutely! Using milk chocolate will make your fudge sweeter and creamier, which is just fine if that’s your preference. Just keep in mind it may be less intense in chocolate flavor.
Do I need a candy thermometer to make this fudge?
While a candy thermometer helps achieve the perfect soft-ball stage and ensures great results, you can also rely on timing and consistent stirring—just pay close attention to the texture and boiling time.
Is it necessary to add nuts?
Not at all! Nuts add a lovely crunch and texture contrast but can easily be omitted for a classic smooth fudge perfect for nut-free diets or picky eaters.
Can I make this fudge vegan or dairy-free?
This traditional recipe uses butter and evaporated milk, which means it’s not vegan or dairy-free. However, with skillful substitutions like dairy-free butter and evaporated coconut milk, plus vegan marshmallow fluff, you could experiment for a tasty alternative.
Final Thoughts
This Decadent Mackinac Island Fudge Recipe is a true treasure from the heart of a beloved sweet tradition. Its creamy, luscious texture paired with the rich chocolate and marshmallow fluff will quickly make it a standout favorite in your dessert lineup. Whether you’re gifting it, serving it at parties, or sneaking a few pieces for a cozy night in, this recipe promises pure deliciousness every time. You absolutely have to give it a try and discover just how magical homemade fudge can be!
Print
Decadent Mackinac Island Fudge Recipe
- Prep Time: 10 minutes
- Cook Time: 5 minutes
- Total Time: 4 hours 15 minutes (including setting time)
- Yield: 36 squares
- Category: Dessert
- Method: Stovetop
- Cuisine: American
Description
This Decadent Mackinac Island Fudge recipe yields rich, creamy, and smooth chocolate fudge squares that melt in your mouth. Made with simple ingredients like granulated sugar, butter, evaporated milk, semi-sweet chocolate chips, marshmallow crème, and vanilla extract, this classic homemade fudge is a perfect treat to share or gift. Optional nuts add a delightful crunch, enhancing the traditional sweet flavor.
Ingredients
Fudge Ingredients
- 3 cups granulated sugar
- ¾ cup unsalted butter (1 ½ sticks)
- â…” cup evaporated milk
- 1 (12 oz) package semi-sweet chocolate chips
- 1 (7 oz) jar marshmallow crème (marshmallow fluff)
- 1 teaspoon vanilla extract
- Optional: ½ cup chopped walnuts or pecans
Instructions
- Prepare Pan: Line a 9×13-inch baking dish with parchment paper or foil, leaving an overhang on the sides. This overhang will allow you to lift the fudge out easily once it has set.
- Cook Sugar Mixture: In a large heavy-bottomed saucepan over medium heat, combine the granulated sugar, unsalted butter, and evaporated milk. Stir constantly to prevent burning as the mixture begins to heat up.
- Boil and Stir: Continue boiling the mixture for 4 to 5 minutes, stirring continuously. The mixture should reach the soft-ball stage, approximately 234–240°F if using a candy thermometer. This stage ensures the fudge will set properly.
- Add Chocolate: Remove the saucepan from heat and immediately stir in the semi-sweet chocolate chips. Keep stirring until the chocolate is fully melted and the mixture is smooth and glossy.
- Add Marshmallow and Vanilla: Stir in the marshmallow crème and vanilla extract. Mix until fully combined and creamy. If desired, fold in the chopped walnuts or pecans to add a crunchy texture.
- Spread and Cool: Pour the fudge mixture into the prepared baking dish and smooth the top with a spatula. Let the fudge set at room temperature for 4 to 6 hours or place it in the refrigerator for 2 to 3 hours to firm up faster.
- Slice and Serve: Once firm, lift the fudge out of the pan using the parchment paper overhang. Cut into 36 equal squares and serve. Store any leftovers in an airtight container at room temperature or refrigerated for longer freshness.
Notes
- Use a heavy-bottomed saucepan to prevent scorching during cooking.
- The soft-ball stage (234-240°F) is crucial for perfect fudge texture; consider using a candy thermometer for accuracy.
- Marshmallow crème adds the signature creamy texture and slight sweetness without graininess.
- Chilling fudge shortens setting time but room temperature allows a classic creamy texture.
- Optional nuts add crunch but can be omitted for a nut-free version.
- Store fudge in an airtight container for up to two weeks.

