This Delicious Banana Fudge Recipe turns ripe banana, white chocolate, and sweetened condensed milk into soft, creamy squares with a mellow banana flavor and rich vanilla sweetness. A small pinch of salt keeps the fudge from tasting overly sweet, while finely chopped toasted walnuts add optional crunch.

Delicious Banana Fudge Recipe featured image

The fudge is made on the stovetop without a candy thermometer, then chilled until firm enough to cut. Because fresh banana adds moisture, cooking the mashed banana briefly before adding the chocolate helps concentrate its flavor and gives the finished fudge a more dependable texture.

Recipe Snapshot

Prep Time: 15 minutes
Cook Time: 8 minutes
Additional Time: 4 hours
Total Time: 4 hours 23 minutes
Yield: 25 pieces
Servings: 25
Difficulty: Easy

Tools for This Recipe

8-inch (20 cm) square baking pan
Parchment paper
Medium heavy-bottomed saucepan
Heat-resistant silicone spatula or wooden spoon
Measuring cups and spoons
Cutting board and sharp knife

Ingredient Notes

Delicious Banana Fudge Recipe ingredients

■ Banana Fudge
■ ½ cup (120 g) very ripe banana, finely mashed, about 1 large banana
■ 2 tablespoons (28 g) unsalted butter
■ 1 can (14 ounces/396 g) sweetened condensed milk
■ 3 cups (510 g) white chocolate chips
■ 1 teaspoon (5 ml) vanilla extract
■ ¼ teaspoon fine salt
■ Optional Topping
■ ½ cup (55 g) walnuts, toasted and finely chopped, optional

Ripe banana: Use a very ripe banana with plenty of brown spotting for stronger flavor and natural sweetness. Mash it as smoothly as possible so there are no large fruit pieces in the fudge. There is no close substitute that provides the same flavor and moisture balance.
White chocolate chips: White chocolate supplies much of the structure once the fudge is chilled. A chopped white chocolate baking bar can replace the chips by weight and may melt more smoothly, depending on the brand.
Sweetened condensed milk: This provides concentrated milk solids and sugar while keeping the fudge creamy. Evaporated milk is not an equal substitute because it contains much less sugar and would significantly change the texture.
Butter: Butter adds richness and helps the banana cook smoothly. Salted butter can be used, but omit the added ¼ teaspoon salt.
Walnuts: Toasted walnuts add a contrasting crunch. Pecans can be substituted in the same quantity for a slightly sweeter, buttery nut flavor, or the nuts can simply be omitted.

Step-by-Step Method

Prepare the pan. Line an 8-inch (20 cm) square pan with parchment paper, leaving enough overhang on two sides to lift the chilled fudge from the pan.
Mash the banana. Measure ½ cup (120 g) finely mashed ripe banana. Break up any large pieces so the mixture is as smooth as possible.
Cook the banana and butter. Melt 2 tablespoons (28 g) unsalted butter in a medium heavy-bottomed saucepan over medium-low heat. Add the mashed banana and cook for 2 to 3 minutes, stirring frequently. It should become slightly thicker and more fragrant without browning.
Add the condensed milk. Stir in the 14-ounce (396 g) can of sweetened condensed milk. Continue cooking over low heat for about 2 minutes, stirring constantly, until the mixture is hot and uniform. Do not let it boil vigorously.
Melt in the white chocolate. Reduce the heat to its lowest setting and add 3 cups (510 g) white chocolate chips. Stir continuously until the chocolate is completely melted and the fudge looks thick, smooth, and glossy, about 2 to 3 minutes. If the chocolate seems reluctant to melt, remove the pan from the heat and keep stirring rather than increasing the temperature.
Add the flavorings. Remove the saucepan from the heat. Stir in 1 teaspoon (5 ml) vanilla extract and ¼ teaspoon fine salt until evenly incorporated.
Fill the pan. Immediately scrape the warm fudge into the prepared pan. Spread it into an even layer, smoothing the top with the spatula.
Add the optional walnuts. Sprinkle ½ cup (55 g) toasted, finely chopped walnuts evenly over the surface. Press them gently into the fudge so they adhere.
Chill until firm. Let the pan stand for about 20 minutes to stop steaming, then cover and refrigerate for at least 3 hours 40 minutes. The center should feel firm rather than soft or fluid when gently pressed.
Cut into squares. Lift the chilled fudge from the pan using the parchment overhang. For 25 pieces, cut it into a 5-by-5 grid with a sharp knife, wiping the blade between cuts for cleaner edges.

Kitchen-Tested Note

Choose a banana that is very ripe but not watery or fermented; heavily spotted yellow skin is a good indicator.
Measure the mashed banana rather than relying only on the number of bananas. Too much fresh fruit can prevent the fudge from setting firmly.
Keep the heat low once the white chocolate is added. Excessive heat can cause white chocolate to become grainy or oily.

What Makes This Recipe Work

Briefly cooking the banana evaporates some excess moisture and concentrates its flavor before the chocolate is added.
White chocolate provides sweetness, richness, and the cocoa butter needed to help the fudge firm as it cools.
Sweetened condensed milk creates a smooth, creamy base without requiring traditional cooked-sugar fudge technique.
A little salt and vanilla balance the sweetness and round out the banana flavor.
Chilling the fudge thoroughly makes it easier to cut into neat squares without smearing.

Make-Ahead and Storage Notes

Store banana fudge in an airtight container in the refrigerator for up to 5 days. Place parchment or wax paper between layers to keep the pieces from sticking together. Because this version contains fresh banana, refrigeration is preferable to extended room-temperature storage.
For longer storage, arrange the pieces in a freezer-safe airtight container with parchment between layers and freeze for up to 1 month for best quality. Thaw the fudge overnight in the refrigerator before serving.
The fudge is well suited to advance preparation because it requires several hours of chilling. It can be prepared the day before serving and kept covered in the refrigerator. For the cleanest presentation, cut it after it is thoroughly chilled.

Delicious Banana Fudge Recipe final dish

Recipe Questions

Can I make this recipe ahead of time?

Yes. Prepare and chill the fudge a day ahead, keep it covered in the refrigerator, and cut it once completely firm.

Why didn't my banana fudge set?

Too much banana is one likely cause because fresh fruit adds substantial moisture. Measure exactly 1/2 cup (120 g), cook it briefly as directed, use the full amount of white chocolate, and allow the fudge to chill completely.

Can I use evaporated milk instead of sweetened condensed milk?

No. Evaporated milk does not contain the concentrated sugar needed for this recipe's sweetness and structure, so it is not a direct substitute.

Can I leave out the walnuts?

Yes. The walnuts are optional and can be omitted without changing the fudge base or chilling time.

Can I use a different pan size?

An 8-inch (20 cm) square pan gives the fudge a substantial thickness. A 9-inch (23 cm) square pan can be used, but the layer will be thinner and may become firm somewhat sooner.