Name: Boston Cream Fudge Recipe
Prep time: 20 min
Cook time: 15 min
Total time: 2 h 35 min
Cuisine: American
Ingredients: 2 cups granulated sugar; ¾ cup unsalted butter; ⅔ cup heavy cream; ¼ cup light corn syrup; 6 ounces white baking chocolate, chopped; 7 ounces marshmallow cream; 1 teaspoon vanilla extract; 1½ tablespoons unsweetened cocoa powder, sifted; 1 cup semi-sweet chocolate chips; 1½ tablespoons vegetable oil

Jump to Recipe· 4.3 from 57 reviews

If you have a sweet tooth and a love for nostalgic desserts, you are going to adore this Boston Cream Fudge Recipe. It perfectly captures the essence of the classic Boston cream pie but in a rich, velvety fudge form that melts in your mouth. With layers of creamy white fudge swirled with luscious chocolate and topped with a shiny chocolate coating, this treat is as impressive as it is irresistible. Whether you’re making it for a special occasion or simply to satisfy your chocolate cravings, the Boston Cream Fudge Recipe brings a comforting, decadent dessert to your kitchen that everyone will rave about.

Ingredients You’ll Need

The image shows two photos side by side on a white marbled surface with a wooden board underneath a sheet of parchment paper. On the board, five square pieces are placed in a row, each covered in smooth, shiny brown chocolate. In the left photo, a woman's hand dips a light beige cube into a bowl filled with melted chocolate. In the right photo, the woman's hand holds a chocolate-covered square piece up close, showing the smooth chocolate coating. The bowl is clear glass, sitting in the middle bottom of the images. Photo taken with an iphone --ar 4:5 --v 7

This Boston Cream Fudge Recipe uses simple yet essential ingredients that come together to create a symphony of creamy, chocolatey goodness. Each ingredient plays a crucial role, from the smoothness of the butter to the rich depth of the cocoa powder, ensuring every bite bursts with flavor and a perfect texture.

Granulated sugar (2 cups): Provides the sweetness and structure needed for the perfect fudge base.
Unsalted butter (¾ cup): Adds richness and helps create a creamy texture.
Heavy cream (⅔ cup): Contributes to the fudge’s smooth and luscious mouthfeel.
Light corn syrup (¼ cup): Prevents crystallization, ensuring a smooth finish.
White baking chocolate, chopped (6 ounces): Brings a gentle sweetness and creamy texture to the white fudge layer.
Marshmallow cream (7 ounces): Adds a fluffy richness and helps achieve that perfect fudge softness.
Vanilla extract (1 teaspoon): Enhances all the flavors with its warm, aromatic note.
Unsweetened cocoa powder (1½ tablespoons), sifted: Gives the chocolate fudge layer its intense color and deep chocolate flavor.
Semi-sweet chocolate chips (1 cup): Used for the glossy, decadent topping that crowns the fudge.
Vegetable oil (1½ tablespoons): Ensures the melted chocolate topping is smooth and easy to dip.

How to Make Boston Cream Fudge Recipe

Step 1: Prepare Your Pan

Start by lining an 8×8-inch baking pan with parchment paper, leaving enough overhang on the sides to lift the fudge out easily once set. Spray the parchment lightly with nonstick cooking spray to guarantee your fudge won’t stick, which makes cleanup a breeze.

Step 2: Cook the Sugar Mixture

Combine the granulated sugar, butter, heavy cream, and light corn syrup in a heavy-bottomed saucepan. Over medium heat, stir constantly as the mixture comes to a rolling boil. Keep stirring and allow it to boil for about 4-5 minutes until a candy thermometer reads 235-240°F, known as the soft-ball stage. This step is crucial for the perfect fudge texture, so stay attentive to prevent burning.

Step 3: Incorporate the White Chocolate

Remove the saucepan from heat and stir in the chopped white baking chocolate until completely melted and silky smooth. This layer is what brings that creamy Boston cream vibe to the fudge, balancing sweetness with a luscious texture.

Step 4: Add Marshmallow Cream and Vanilla

Mix in the marshmallow cream and vanilla extract gently but thoroughly. These ingredients enhance the fudge’s fluffiness and flavor depth, making every bite melt gently on your tongue.

Step 5: Layer the Fudge Mixtures

Pour about three-quarters of this white fudge mixture into your prepared pan. With the remaining mixture, whisk in the sifted unsweetened cocoa powder until it’s fully combined, turning it into a rich chocolate layer. Spoon the cocoa mixture on top of the white fudge and use a toothpick or skewer to swirl the layers, creating a beautiful marbled pattern without blending them too much.

Step 6: Set the Fudge

Allow the fudge to cool at room temperature for about an hour, then cover it with aluminum foil and refrigerate until it is firm—approximately one hour. If your kitchen feels cooler, simply let it finish setting on the counter for a little while longer. The goal is to have a firm yet creamy fudge that slices cleanly.

Step 7: Add the Chocolate Topping

In a microwave-safe bowl, combine the semi-sweet chocolate chips with vegetable oil. Heat on high for 30 seconds, stir well, then continue heating in 15-second bursts, stirring in between until the chocolate is completely melted and glossy. Dip the top of each fudge square into this rich chocolate coating and let it set fully before serving.

How to Serve Boston Cream Fudge Recipe

This image shows a stack of square layered fudge pieces on a white plate, each piece having three layers: a bottom white creamy layer, a middle marbled layer mixing light brown and white swirls, and a top glossy dark brown chocolate layer that looks smooth with slight waves. Behind the plate, there is another white plate with more fudge pieces blurred in the background. To the right, a white bowl with chocolate syrup and a yellow spoon is visible. In the foreground, a small beige bowl filled with dark chocolate chips and some scattered chips can be seen on a white marbled surface, along with a black and white checkered cloth. Photo taken with an iphone --ar 4:5 --v 7

Garnishes

While the dipped chocolate topping is a classic finishing touch, you can get creative with garnishes by sprinkling a little powdered sugar, shaved white chocolate, or even a dusting of cocoa powder for a luxe look. These little touches add visual appeal and an extra hint of flavor.

Side Dishes

This fudge is quite rich on its own, so pair it with light, refreshing sides like fresh berries or a chilled glass of milk to balance the sweetness. A cup of black coffee or a mild tea can also be the perfect companion, cutting through the richness for a harmonious dessert experience.

Creative Ways to Present

Elevate your presentation by arranging the fudge pieces on a decorative platter lined with doilies or edible flowers for festive occasions. Wrapped individually in wax paper tied with a ribbon, Boston Cream Fudge Recipe makes a heartfelt homemade gift sure to impress friends and family.

Make Ahead and Storage

Storing Leftovers

Store any leftover Boston Cream Fudge in an airtight container at room temperature or in the refrigerator. It will keep well for up to two weeks, and the flavors often deepen when rested a little longer. Just be sure to keep it covered to avoid any drying out or absorbing other fridge odors.

Freezing

If you want to keep your Boston Cream Fudge Recipe for longer, freezing is a fantastic option. Wrap the fudge tightly in plastic wrap and then place it inside a freezer-safe bag or container. It will maintain its texture and flavor for up to three months. Thaw it overnight in the fridge before enjoying.

Reheating

Fudge is best enjoyed cold or at room temperature, so reheating isn’t generally recommended. However, if you like your fudge a bit softer, simply let it sit out at room temperature for 10-15 minutes before eating. The chocolate topping will become pleasantly soft without losing its glossy appeal.

FAQs

Can I use dark chocolate instead of semi-sweet for the topping?

Absolutely! Dark chocolate will give a richer, slightly more bitter finish that contrasts beautifully with the sweet, creamy fudge layers. Just make sure to adjust the sweetness according to your taste.

Is it necessary to use corn syrup in the recipe?

Corn syrup helps prevent sugar crystallization, which keeps your fudge smooth and creamy. Without it, the fudge might become grainy, but you can try using golden syrup or honey as alternatives if needed.

Can I make this recipe dairy-free?

To make this Boston Cream Fudge Recipe dairy-free, swap the butter for a vegan alternative and use coconut cream instead of heavy cream. Make sure your white chocolate and marshmallow cream are also dairy-free. The texture might differ slightly but should still be delicious.

How do I know when the fudge is done cooking?

The key indicator is reaching the soft-ball stage, around 235-240°F on a candy thermometer. This ensures the fudge will set correctly with a smooth, fudgey consistency instead of being too hard or too soft.

Why is my fudge grainy?

Grainy fudge is often caused by sugar crystals forming during cooking or cooling. Stirring constantly while heating and using corn syrup helps prevent this. Also, avoid stirring once you pour the fudge into the pan to set.

Final Thoughts

Making this Boston Cream Fudge Recipe is like giving yourself a big, warm hug in dessert form. The combination of creamy white fudge with rich chocolate swirls, all topped with a glossy chocolate dip, brings a little extra joy and indulgence to your day. I encourage you to try making it soon—your taste buds will thank you, and you might just find your new favorite homemade treat.