Chocoflan (Impossible Cake)

A magical dessert where rich chocolate cake meets silky vanilla flan—baked in one pan and flipped into perfection!
They call it Impossible Cake for a reason—two batters go into a pan, and during baking, they mysteriously switch places! The result? A luscious, caramel-kissed flan layered over moist chocolate cake. It’s a show-stopping dessert that’s surprisingly easy to make, and it never fails to wow a crowd.
Ingredients
For the Chocolate Cake Layer
- 1 box chocolate cake mix
- Eggs, oil, and water as directed on the box
For the Flan Layer
- 1 can (14 oz) sweetened condensed milk
- 1 can (12 oz) evaporated milk
- 4 large eggs
- 1 tsp vanilla extract
Other
- ½ cup caramel sauce (store-bought or homemade)
- Cooking spray
- Bundt pan
Instructions
1️⃣ Prep the Pan
Preheat your oven to 375°F (190°C).
Grease a bundt pan thoroughly with cooking spray.
Pour ½ cup caramel sauce into the bottom of the pan and swirl to coat evenly.
2️⃣ Make the Chocolate Cake Layer
Prepare the chocolate cake batter according to the instructions on the box.
Pour the batter into the bundt pan over the caramel.
3️⃣ Blend the Flan
In a blender, combine sweetened condensed milk, evaporated milk, eggs, and vanilla extract.
Blend until smooth and creamy.
4️⃣ Add the Flan Layer
Slowly and gently pour the flan mixture over the chocolate cake batter.
Don’t worry—it’ll sink to the bottom (and flip to the top later!).
5️⃣ Water Bath & Bake
Cover the pan tightly with foil.
Place the bundt pan inside a larger baking dish filled with 1–2 inches of hot water (this water bath helps the flan set evenly).
Bake for 50–60 minutes, or until a toothpick inserted into the cake comes out clean.
6️⃣ Cool & Invert
Let the chocoflan cool completely in the pan. Then refrigerate for at least 4 hours or overnight.
To serve, run a knife around the edges, place a plate on top, and invert—the flan will now be perfectly on top, dripping with caramel.
Recipe Details
- Prep Time: 20 minutes
- Bake Time: 50–60 minutes
- Chill Time: 4+ hours
- Total Time: About 5 hours
- Servings: 10–12 slices
- Difficulty: Easy-Medium
Why It’s Called Impossible
- The flan and cake layers magically switch places while baking
- You only need one pan for two dreamy desserts
- It’s rich, creamy, and fudgy with no layering required
Tips for Success
- Grease well! Flan can stick—use a good nonstick spray.
- Let it chill fully before unmolding to ensure clean layers.
- Use a high-sided baking dish for the water bath to avoid spills.
Chocoflan is part baking wizardry, part indulgent dream—and all delicious. Whether it’s for a special celebration or a weekend treat, this dessert is guaranteed to impress. Get ready for compliments!
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