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Ultimate White Chocolate Passionfruit Mudcake

I still remember the first time I tasted a mudcake. It was at my grandmother’s house, a simple chocolate version, and it was unlike anything I had ever experienced. That fudgy, almost molten center, the intense chocolate flavor…it was pure bliss. Years later, I wanted to recreate that feeling but with a twist, a hint of tropical sunshine. That’s how this White Chocolate Passionfruit Mudcake was born, a decadent treat that marries the richness of white chocolate with the tangy brightness of passionfruit, creating a symphony of flavors that always leaves everyone wanting more.

Recipe Overview

Prep Time: 20 minutes
Cook Time: 1 hour
Total Time: 1 hour 20 minutes
Servings: 12
Yield: 1 mudcake
Dietary Type: Not specified (Contains dairy, gluten, and eggs)

Ingredients

Cake:

250g butter, chopped
250g white chocolate
150ml water
1 cup caster sugar (if using fresh passionfruit, use 1 1/4 cups sugar)
50ml tasti passionfruit in syrup (or 50ml fresh passionfruit)
1 3/4 cups plain flour
1 cup self raising flour
2 eggs, lightly beaten
1/2 cup sweetened condensed milk

Ganache:

100ml full fat cream
250g white chocolate
130ml ‘tasti’ passionfruit in sweetened syrup. Fresh can also be used here however if it ends up too tart add icing sugar

Equipment Needed

Saucepan
Sifter
Mixing bowl
Whisk
20-22cm round deep cake dish
Toothpick or skewer
Double boiler or heatproof bowl and saucepan
Grater

Instructions

Preheat your oven to 150°C (300°F). This low temperature is crucial for achieving that signature mudcake texture.
In a saucepan over low heat, combine the chopped butter, white chocolate, water, and caster sugar. Stir constantly until all the ingredients are melted and fully combined. Be patient and keep the heat low to prevent the chocolate from seizing.
Remove the saucepan from the heat and let the mixture cool for 10 minutes. This step is important to prevent the eggs from cooking when they are added later.
Sift together the plain flour and self-raising flour into a mixing bowl. Sifting ensures a light and airy texture for the cake.
Add the cooled chocolate mixture to the sifted flours and beat gently until just combined. Avoid overmixing at this stage, as it can result in a tough cake.
Stir in the lightly beaten eggs, sweetened condensed milk, and passionfruit syrup (or fresh passionfruit). Make sure everything is well incorporated.
Pour the mixture into a greased and lined 20-22cm round deep cake dish. The depth of the dish helps create the signature mudcake texture.
Bake for approximately 1 hour. Cooking times can vary depending on your oven, so start checking the cake after 50 minutes. To test for doneness, insert a toothpick into the center of the cake. It should come out with moist crumbs attached.
Leave the cake to cool completely in the dish before turning it out. This prevents the cake from breaking.
Once cooled, use a skewer or toothpick to poke holes all over the top of the cake.
Pour 50ml of passionfruit syrup (strained) over the cake, allowing it to soak into the holes. This will add extra moisture and flavor to the cake. Let it sit for an hour or so, allowing the syrup to fully absorb.
Prepare the ganache: Using a double boiler (or a heatproof bowl set over a saucepan with simmering water), pour the cream into the bowl and heat on low for 5 minutes. Make sure the bottom of the bowl doesn’t touch the water.
While the cream is heating, grate the white chocolate. This will help it melt more quickly and evenly.
Once the cream is heated, add the grated white chocolate to the cream and stir continuously until the chocolate is melted and the mixture is smooth and slightly thickened.
Remove the ganache from the heat and stir in the passionfruit syrup (or fresh passionfruit).
Let the ganache cool for at least 15 minutes before icing the cake. The ganache will thicken as it cools. If it cools too much and becomes too thick, you can gently reheat it over the double boiler for a few seconds.
Ice the cake with the passionfruit ganache. Work quickly, as the ganache can set relatively fast as it cools.
Enjoy!

Expert Tips & Tricks

Low and Slow: Baking at a low temperature is key to a fudgy mudcake. Resist the urge to increase the temperature to speed up the baking process.
Don’t Overmix: Overmixing the batter develops the gluten in the flour, resulting in a tougher cake. Mix until just combined.
Room Temperature Ingredients: While not explicitly stated in this recipe, using room-temperature eggs can help the batter emulsify better, leading to a smoother texture.
Ganache Consistency: If your ganache is too thin, add a little more melted white chocolate. If it’s too thick, add a splash more warm cream.
Passionfruit Power: For a stronger passionfruit flavor, add passionfruit pulp directly to the cake batter, but be mindful of the added moisture. Adjust the liquid content in the batter accordingly.

Serving & Storage Suggestions

Serve this White Chocolate Passionfruit Mudcake slightly chilled or at room temperature. A scoop of vanilla ice cream or a dollop of whipped cream makes a perfect accompaniment. For an extra touch of elegance, garnish with fresh passionfruit pulp or a few white chocolate shavings.

Store any leftover cake in an airtight container at room temperature for up to 3 days or in the refrigerator for up to 5 days. The cake can also be frozen for up to 2 months. Thaw overnight in the refrigerator before serving. The ganache may become slightly firmer after refrigeration, so allow the cake to come to room temperature for a softer texture.

Nutritional Information

Please note that this is an estimate as nutritional values can vary based on specific ingredients used.

Nutrient	Amount per Serving	% Daily Value*
Calories	545 kcal	27%
Total Fat	30g	46%
Saturated Fat	18g	90%
Cholesterol	75mg	25%
Sodium	150mg	7%
Total Carbohydrate	65g	22%
Dietary Fiber	1g	4%
Sugars	45g	–
Protein	6g	12%

*Percent Daily Values are based on a 2,000 calorie diet.

Variations & Substitutions

Gluten-Free: Substitute the plain flour and self-raising flour with a gluten-free flour blend. You may need to add a teaspoon of xanthan gum to help bind the ingredients.
Dairy-Free: Use a dairy-free butter alternative and coconut cream instead of full-fat cream for the ganache. Ensure the white chocolate is also dairy-free.
Different Fruit: Experiment with other tropical fruits like mango or pineapple puree in the batter and ganache.
Citrus Zest: Add a teaspoon of lemon or lime zest to the batter for an extra layer of flavor.
Passionfruit Seeds: For added texture and visual appeal, sprinkle some passionfruit seeds on top of the ganache before it sets.

FAQs (Frequently Asked Questions)

Q: Can I use fresh passionfruit instead of the passionfruit in syrup?
A: Yes, you can! Use 50ml of fresh passionfruit pulp in the cake batter and 130ml in the ganache. If the passionfruit is particularly tart, you may need to add a little extra icing sugar to the ganache to balance the flavors. If substituting fresh passionfruit, increase the caster sugar to 1 1/4 cups.

Q: My mudcake is too dense. What did I do wrong?
A: Overmixing the batter can lead to a dense cake. Be sure to mix the wet and dry ingredients until just combined. Also, ensure your oven temperature is accurate.

Q: My ganache is too thick. How can I fix it?
A: Gently reheat the ganache over a double boiler, stirring constantly, and add a tablespoon or two of warm cream until it reaches the desired consistency.

Q: Can I make this cake ahead of time?
A: Absolutely! This mudcake actually tastes even better the next day as the flavors meld together. You can bake the cake a day in advance and store it, covered, at room temperature. Make the ganache just before serving.

Q: The top of my cake cracked during baking. Is that normal?
A: Some cracking is normal for mudcakes. It doesn’t affect the flavor or texture. The ganache will cover any imperfections.

Final Thoughts

I truly hope you’ll give this White Chocolate Passionfruit Mudcake a try. It’s a labor of love, but the resulting symphony of flavors is well worth the effort. Whether you’re celebrating a special occasion or simply craving a decadent treat, this cake is sure to impress. Share it with your loved ones, savor each bite, and let the tropical notes transport you to a sun-drenched paradise. And don’t forget to let me know what you think – I always love hearing about your baking adventures!

Ultimate White Chocolate Passionfruit Mudcake Recipe