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Boston Cream Fudge Recipe

5 Stars 4 Stars 3 Stars 2 Stars 1 Star 4.9 from 602 reviews
  • Author: Paula
  • Prep Time: 10 minutes
  • Cook Time: 20 minutes
  • Total Time: 30 minutes
  • Yield: 25 servings
  • Category: Dessert
  • Method: Stovetop
  • Cuisine: American

Description

This Boston Cream Fudge recipe offers a decadent layered treat combining creamy white chocolate fudge with a rich cocoa swirl, topped with a glossy semi-sweet chocolate coating. Perfectly smooth and luscious, this fudge captures the classic Boston cream pie flavors in a rich, chewy candy form, ideal for gifts or special occasions.


Ingredients

Scale

Fudge Base

  • 2 cups granulated sugar
  • ¾ cup unsalted butter
  • ⅔ cup heavy cream
  • ¼ cup light corn syrup

White Chocolate Layer

  • 6 ounces white baking chocolate, chopped
  • 7 ounces marshmallow cream
  • 1 teaspoon vanilla extract

Cocoa Swirl Layer

  • 1½ tablespoons unsweetened cocoa powder, sifted

Topping

  • 1 cup semi-sweet chocolate chips
  • 1½ tablespoons vegetable oil


Instructions

  1. Prepare the Pan: Line an 8×8-inch baking pan with parchment paper, ensuring there is an overhang on the sides for easy removal later. Lightly spray the parchment with nonstick cooking spray to prevent sticking.
  2. Combine Ingredients: In a heavy-bottomed saucepan, combine sugar, butter, heavy cream, and corn syrup. Cook over medium heat, stirring constantly to prevent burning.
  3. Boil Mixture: Continue cooking while stirring until the mixture reaches a rolling boil. Allow it to boil for about 4-5 minutes, or until a candy thermometer registers between 235-240°F (soft-ball stage), indicating proper fudge temperature.
  4. Melt White Chocolate: Remove the pan from heat and stir in the chopped white baking chocolate until fully melted and smooth.
  5. Add Marshmallow and Vanilla: Mix in the marshmallow cream and vanilla extract until the mixture is well combined and creamy.
  6. Pour Base Layer: Pour three-quarters of the fudge mixture into the prepared baking pan, spreading evenly.
  7. Mix Cocoa Powder: Add the sifted unsweetened cocoa powder to the remaining fudge mixture. Whisk thoroughly to incorporate the cocoa evenly.
  8. Add Cocoa Layer: Spoon the cocoa-flavored fudge mixture over the white chocolate base layer in the pan carefully.
  9. Create Marble Effect: Use a toothpick or skewer to gently swirl the two layers together, creating a marbled pattern but keeping layers distinct for visual appeal.
  10. Cool and Set: Let the fudge cool at room temperature for about 1 hour, then cover with aluminum foil. Refrigerate for an additional hour until the fudge is firm and set. Alternatively, on cooler days, allow it to set fully on the countertop.
  11. Slice Fudge: Once set, carefully lift the fudge out of the pan using the parchment paper overhang. Using a sharp kitchen knife, cut into 5×5 or 6×6 square slices for serving.
  12. Prepare Chocolate Topping: In a microwave-safe bowl, combine semi-sweet chocolate chips and vegetable oil. Microwave on high for 30 seconds, stir, then continue heating in 15-second increments until fully melted and smooth.
  13. Dip and Set Topping: Dip the top of each fudge square into the melted chocolate, then place on wax or parchment paper. Allow the chocolate to harden completely before serving.

Notes

  • Storage: Store fudge in an airtight container at room temperature for up to one week. For longer storage, refrigerate for 2-3 weeks.
  • Freezing: Wrap fudge tightly in parchment paper and aluminum foil, store in a freezer-safe container for up to 2 months. Thaw overnight in the refrigerator before serving.
  • Preparation Tips: Ensure the parchment paper has an ample overhang for easy fudge removal. Avoid sugar crystals on pan sides to prevent grainy texture by not letting sugar splash up during boiling.
  • Temperature Tips: Use a candy thermometer to reach the soft-ball stage (235-240°F) for optimal fudge texture.
  • Cutting Fudge: Warm a knife under hot water, dry it, then slice fudge cleanly for smooth edges.
  • Setting: In cooler kitchens, fudge can finish setting undisturbed at room temperature instead of refrigeration for a softer texture.

Nutrition

  • Serving Size: 1 piece (approx. 1.5 inch square)
  • Calories: 180
  • Sugar: 22g
  • Sodium: 60mg
  • Fat: 9g
  • Saturated Fat: 5g
  • Unsaturated Fat: 3g
  • Trans Fat: 0g
  • Carbohydrates: 25g
  • Fiber: 1g
  • Protein: 1.5g
  • Cholesterol: 20mg