1. Get your oven going to 350°F and grease a 9-inch round cake pan really well—sides and bottom. Line the bottom with parchment paper if you’re playing it safe (I always do).
2. Whisk together flour, baking powder, baking soda, and salt in a medium bowl. Set this aside while you work on the fun part.
3. Cream butter and sugar together in a large bowl until it’s light, fluffy, and almost doubles in volume—about 3-4 minutes with a mixer. This is where the magic starts.
4. Add eggs one at a time, beating well after each addition until fully incorporated. Stir in vanilla extract until everything smells amazing.
5. Mix in the dulce de leche until you’ve got gorgeous caramel swirls throughout the batter. Don’t overmix; you want to see those ribbons of dulce.
6. Add about a third of your flour mixture, mix gently, then add half the buttermilk. Add another third of flour, the rest of the buttermilk, and finish with the last of the flour. Mix just until combined—overmixing makes tough cake.
7. Pour batter into your prepared pan and smooth the top with a spatula. Give the pan a gentle tap on the counter to release any air bubbles.
8. Bake for 25-30 minutes, until a toothpick inserted in the center comes out clean or with just a few moist crumbs. Start checking at 25 minutes because every oven is different.
9. Let it cool in the pan for 10 minutes (I know it’s hard to wait), then carefully turn it out onto a wire rack to cool completely—about an hour.
10. Once cooled, drizzle with additional dulce de leche that you’ve warmed slightly in the microwave for about 15 seconds. It should pour slowly but smoothly.
11. Slice and serve this gorgeous cake at room temperature for the best flavor and texture.

Nutrition Information (Per Serving):

• Calories: 285
• Carbohydrates: 38g
• Protein: 4g
• Fat: 13g
• Fiber: 0.5g
• Sodium: 220mg
• Calcium: 8% DV
• Iron: 6% DV

Note: This traditional Latin American cake provides a good balance of energy and satisfaction, perfect for special occasions.

Notes:

• Room temperature ingredients are crucial here—they blend together so much better
• Don’t skip the alternating method with dry and wet ingredients; it keeps the cake tender
• Every oven runs differently, so trust your eyes and that toothpick test
• If your dulce de leche is super thick, you might need to thin it with a teaspoon of milk for easier drizzling
• This tastes even better the next day after the flavors meld

Storage Tips:

Keep covered at room temperature for up to 3 days, or refrigerate for up to a week if your kitchen is warm. Don’t microwave to reheat—it turns the cake gummy. Let refrigerated slices come to room temperature for about 20 minutes before serving for the best texture. Freezes beautifully for up to 3 months wrapped tightly.

Serving Suggestions:

• Serve with a dollop of fresh whipped cream and a light dusting of cinnamon
• Pair with strong black coffee or café con leche for an authentic Latin American experience
• Top with fresh berries for a lighter, fruity contrast to the rich caramel
• Serve alongside vanilla ice cream for the ultimate dessert experience

Mix It Up (Recipe Variations):

Chocolate Dulce de Leche Cake: Add 1/4 cup cocoa powder to dry ingredients and reduce flour to 3/4 cup. The chocolate-caramel combo is absolutely stunning.

Mini Dulce de Leche Cupcakes: Use same batter in muffin tins for 18-20 cupcakes. Bake 15-18 minutes. Perfect for parties.

Tres Dulce Version: Poke holes in cooled cake and pour dulce de leche thinned with cream over top. Let soak overnight for ultra-moist texture.

Coconut Dulce Cake: Add 1/2 cup shredded coconut to batter and top with toasted coconut flakes. Adds tropical flair to this Latin favorite.

What Makes This Recipe Special:

This authentic Latin American cake showcases the traditional technique of incorporating dulce de leche directly into the batter rather than just using it as frosting. The buttermilk adds subtle tang that balances the rich sweetness, while the alternating method of adding dry and wet ingredients creates that perfectly tender, moist crumb that makes every slice irresistible.