8-Ounce Cake Recipe: Mini Bundt Tops With Gooey Caramel Centers

This 8-ounce cake recipe delivers the perfect single-serving indulgence with delicate mini Bundt tops and a gooey caramel center that melts with every bite. The secret lies in precise measurements and a gentle baking approach that ensures a tender crumb while keeping the caramel perfectly set.

I developed this recipe after years of testing single-serving desserts, and it consistently delivers restaurant-quality results in just 35 minutes—ideal for special occasions or satisfying a sweet craving without the fuss of a full cake.

The recipe uses a foolproof technique with a simple batter that transforms into elegant mini Bundt cakes with crisp edges and a moist interior. The caramel center requires minimal effort but creates that luxurious, melt-in-your-mouth surprise that makes this dessert unforgettable.

Whether you're serving it at a brunch, pairing it with coffee, or treating yourself to a small indulgence, the presentation is as impressive as the flavor.

What sets this recipe apart is the balance of texture and flavor—crispy tops, tender cake, and a rich caramel core that ties everything together. The ingredients are straightforward, and the process is designed to minimize mess, making it perfect for both beginners and experienced bakers.

Once you try this, you’ll never settle for anything less than a perfectly portioned, decadent dessert again.

For added elegance, consider dusting the tops with powdered sugar or drizzling with a touch of chocolate ganache. The versatility of this recipe means you can easily adjust the flavor—vanilla, chocolate, or even lemon—while maintaining the same flawless technique. Let’s get started on creating your perfect single-serving masterpiece.

Ingredients for 8oz cake

Four elegant mini Bundts with golden tops and molten caramel hearts—just 12 ingredients transform into restaurant-quality dessert magic.

The butter and sugar start this recipe right—room temperature is non-negotiable for that perfect creamy texture. I always grab Land O'Lakes unsalted butter from the dairy case, but any good brand works. For the sugar, superfine gives the smoothest batter, but if you only have granulated, pulse it in a food processor for 30 seconds. The vanilla extract? Madagascar Bourbon from McCormick is my go-to—it's worth the splurge for that deep, complex flavor that shines in single-serving desserts. Pro tip: Separate those eggs carefully; you'll want the whites perfectly whipped for that airy crumb.

No superfine sugar? Pulse regular granulated sugar in a food processor for 30 seconds to break it down. Running short on vanilla? Almond extract at half the amount works in a pinch, though it'll have a slightly different profile. The baking powder must be fresh—if it's over a year old, toss it. For the caramel center, store-bought caramel sauce (like Smucker's) can substitute, but making it fresh gives that authentic restaurant-quality gooey surprise. And if you're feeling fancy, swap the vanilla for chocolate or lemon zest—just keep the same measurements for the foolproof technique.

Store leftover cake components in airtight containers: batter can chill for 2 days, while baked cakes keep 3 days at room temperature or 1 week refrigerated. The caramel center sets beautifully overnight, so I often bake these the day before—wrapped in foil they reheat perfectly in the oven for 10 minutes at 300°F. For presentation, dust those tops with powdered sugar right before serving (it melts off quickly, so don't do it too early). These freeze surprisingly well too—wrap individually and freeze for up to 3 months—perfect for last-minute gifts.

Step-by-step instructions for mini Bundt tops with gooey caramel centers

Here's how to create these delicate, caramel-filled Bundt cakes with perfect texture every time.

In a small saucepan, combine the 0.5 cup heavy cream, 0.25 cup granulated sugar, and 2 tablespoons water. Bring to a boil over medium-high heat, then reduce to medium-low and simmer for 5-7 minutes until the mixture thickens into a golden caramel, coating the back of a spoon. Here's the thing—don't walk away; you want it to thicken but not burn. Remove from heat and let cool for 5 minutes—this prevents the filling from melting too quickly when you pour it into the hot cakes.

While the caramel cools, lightly grease the 4 whole mini Bundt cake pans with butter or baking spray. Tap them gently to remove any excess grease—this ensures the cakes release cleanly. I like to use a pastry brush for even distribution. The pans should be ready to go when your caramel is just warm to the touch.

In a stand mixer fitted with the paddle attachment, beat the 0.5 cup unsalted butter (room temperature) with the 0.5 cup granulated sugar and 0.25 cup light brown sugar on medium speed for 3-4 minutes. You're looking for a light, fluffy texture—the mixture should nearly triple in volume and become pale, almost ribbony. This step is crucial for those tender, airy crumb layers that make these cakes so special.

I press down on the butter mixture with a spatula occasionally to check for proper creaming. If it looks too dense or doesn't hold peaks when I lift the spatula, I add another 30 seconds of mixing. The reason we wait until the butter is room temperature is that cold butter won't incorporate air properly, leading to dense cakes instead of light, fluffy ones.

Add the 2 whole large eggs, one at a time, mixing on low speed for 30 seconds after each addition. Then stir in the 1 tablespoon pure vanilla extract and 0.5 teaspoon salt. In a separate bowl, whisk together the 0.75 cup all-purpose flour and 1.5 teaspoons baking powder—I sift this mixture directly into the wet ingredients to avoid lumps.

Mix on low speed for 30-45 seconds until just combined. You should still see some flour streaks—overmixing develops gluten and makes the cakes tough. Here's where it gets fun: fold in half of the cooled caramel using a silicone spatula, being careful not to deflate the batter. The batter will be thick but manageable, and you'll see beautiful ribbons when you lift the spatula.

Preheat your oven to 350°F. Divide the batter evenly among the 4 whole mini Bundt cake pans, filling each about ¾ full. Place the pans on a baking sheet and bake for 18-22 minutes, until a toothpick inserted into the center comes out clean. The cakes should spring back when gently pressed in the center—they'll continue setting as they cool.

About 2 minutes before the cakes are done, remove them from the oven and carefully pour the remaining caramel into the center hole of each cake using a small ladle or squeeze bottle. The residual heat will help the caramel set slightly as the cakes cool. Return the cakes to the oven for the final 2 minutes to let the caramel firm up just enough to stay in place.

Let the cakes cool in the pans for 5 minutes, then invert them onto a wire rack to cool completely. Once cooled, dust the tops generously with 2 tablespoons powdered sugar using a fine-mesh sieve. This step adds that professional finish and balances the rich caramel flavor. Serve the cakes at room temperature for the best texture—each bite should deliver a delicate crumb with a surprise gooey caramel center.

Real talk: these cakes are best enjoyed within 2 days of baking. Store them in an airtight container at room temperature, and bring them to room temperature before serving. The contrast of the warm caramel against the cool cake is what makes this recipe truly special.

Creative variations of these flavors

Chocolate Twist

Swap the vanilla extract for 2 tablespoons unsweetened cocoa powder and reduce the flour to 0.5 cups for a rich chocolate version. Add ¼ cup melted dark chocolate to the batter for extra depth.

Use a chocolate caramel sauce (mix ½ cup heavy cream with ½ cup chocolate chips and 2 tablespoons sugar) for the filling. Top with a dusting of cocoa powder instead of powdered sugar for a sophisticated finish. 🍫

Citrus Zest

Infuse the batter with 1 tablespoon lemon or orange zest plus 1 teaspoon extract for a bright, tangy twist. Replace half the granulated sugar with turbinado sugar for a subtle crunch.

Use a citrus caramel (add 1 teaspoon lemon juice to the caramel syrup) to keep the filling fresh and vibrant. Garnish with a sprinkle of zest before serving for a pop of color.