Slow-Cooker Ferrero Rocher Hazelnut Lava Cake Tips, FAQ & printable recipe

Tips for success

For an enhanced flavor profile, toast the hazelnuts in a dry skillet over medium heat for 3 to 5 minutes before adding them to the cake. This intensifies their natural nuttiness and ensures they remain crunchy even after the slow-cooking process. Allow them to cool completely before sprinkling them over the batter to prevent the heat from affecting the consistency of the cake batter prematurely during the assembly phase.

If you are serving this for a large gathering, consider preparing individual portions by using smaller ramekins inside the slow cooker, provided they are heat-safe. This can help with portion control and presentation, though it will require adjusting the cooking time slightly downward.

Always monitor the internal temperature of the individual cakes to ensure they reach the safe threshold of 160°F (71°C) without becoming dry, as smaller volumes cook faster than a full-size cake.

Variations

• White Chocolate Raspberry: Replace the chocolate cake mix with a white cake mix and substitute the Ferrero Rocher truffles with white chocolate truffles filled with raspberry ganache. Top with fresh raspberries instead of hazelnuts.
• Salted Caramel Pecan: Use a yellow cake mix and swap the truffles for salted caramel-filled chocolates. Sprinkle toasted pecans over the top and drizzle with a salted caramel sauce instead of hot chocolate fudge.

Storage and make-ahead

Fridge

Keep in an airtight container for up to 3 days.

Freezer

Not recommended, as the molten center texture will not hold up well upon thawing.

Reheat

Reheat individual portions in the microwave for 30 seconds at a time until warmed through.

Store any leftovers in an airtight container to maintain the moisture of the cake. Place the container in the refrigerator within two hours of serving to ensure food safety.

The cake can be kept for up to three days, though the texture of the molten center will become firmer as it cools and is refrigerated. It is best to consume the dessert as soon as possible after cooking to enjoy the optimal contrast between the warm cake and the molten chocolate centers.

You can prepare the dry and wet ingredients for the cake batter separately up to 24 hours in advance, keeping them in the refrigerator. However, for the best results, assemble the cake in the slow cooker just before you are ready to start the cooking process.

Avoid layering the truffles and sauce too far in advance, as the moisture from the sauce may cause the truffles to lose their structural integrity before the cooking cycle begins.

Serving ideas

Serve the cake warm directly from the slow cooker for the most dramatic presentation. Use a large spoon to scoop out generous portions, ensuring each serving includes a piece of the cake along with the molten truffle center. The combination of the warm, rich cake and the cold, creamy hazelnut gelato is essential for balancing the intensity of the chocolate, so do not skip the topping if you want the full experience.

For a final touch of elegance, garnish each bowl with a few extra gold-dusted chocolate curls or a light dusting of cocoa powder. The visual contrast between the dark cake, the light gelato, and the shimmering gold curls makes for an impressive finale to any meal.

Ensure that the gelato is added only at the moment of serving, as it will melt quickly upon contact with the warm lava cake, creating a delicious sauce that ties the entire dessert together.

Frequently asked questions

Recipe card

Slow-Cooker Ferrero Rocher Hazelnut Lava Cake

Prep 10 minCook 2 h 15 minTotal 2 h 25 minServes 8

Ingredients

• 1 box chocolate cake mix
• 16 Ferrero Rocher truffles, unwrapped
• 1/4 cup roasted hazelnuts, chopped
• 1 cup hot chocolate sauce
• 1 pint hazelnut gelato, for serving
• 2 tbsp gold-dusted chocolate curls, for serving

Instructions

1. Grease the interior of the 6-quart slow cooker thoroughly with cooking spray or butter. In a separate bowl, prepare the chocolate cake mix according to the package instructions. Pour the prepared batter into the bottom of the slow cooker, spreading it evenly with a spatula. This foundation ensures the cake cooks consistently throughout the process.
2. Press the 16 unwrapped Ferrero Rocher truffles into the cake batter, arranging them in concentric circles to ensure every portion receives a molten center. Sprinkle the chopped roasted hazelnuts over the batter and truffles. Finally, pour the hot chocolate sauce evenly over the entire surface, allowing it to settle into the crevices of the batter and around the truffles.
3. Cover the slow cooker with the lid. Cook on high for 2 hours and 15 minutes. The cake is finished when the edges are set and the center has transformed into a molten, truffle-filled lava texture. Once cooked, scoop a generous portion into a bowl. Top each serving immediately with a scoop of hazelnut gelato and a garnish of gold-dusted chocolate curls for an elegant presentation.

Contains: gluten, eggs, milk, tree nuts, soy

Estimated nutrition per serving

Calories

450

Protein

5 g

Carbohydrates

62 g

Fat

22 g

Fiber

2 g

Sugar

45 g

Sodium

380 mg

Automatic estimate from the ingredient list, not laboratory-verified.