Alfajor Cake Recipe: Layers of Nutty Dulce DE Leche and Crispy Wafers

This alfajor cake recipe delivers the perfect balance of crispy wafers, creamy dulce de leche filling, and nutty layers that taste like a slice of Latin American nostalgia. 🌟 The secret lies in the delicate pastry shells that stay perfectly crisp while encasing the rich caramelized filling—just like the classic alfajores you love, but in cake form. Each bite combines the satisfying crunch of the wafer with the velvety sweetness of dulce de leche, creating a dessert that’s both elegant and comforting.

The recipe begins with a simple yet precise dough that transforms into thin, crispy wafers when baked, forming the structural heart of this cake. Between each layer, we spread homemade or store-bought dulce de leche, ensuring every slice delivers that signature nutty, caramelized flavor. The assembly process is methodical but straightforward, allowing the flavors to meld without overpowering the delicate texture of the wafers.

What makes this alfajor cake truly special is its ability to satisfy both the eye and the palate—golden, crispy layers with a glossy caramel filling that promises indulgence in every bite. The combination of textures (crispy, chewy, and creamy) makes it a showstopper for gatherings or a decadent treat for special occasions. Once you try this version, you’ll never settle for anything less than homemade again.

For those who love customization, you can experiment with different fillings like chocolate ganache or coconut cream, or even add a sprinkle of crushed nuts for extra crunch. The recipe scales easily, so whether you're baking for a small gathering or a larger crowd, the results will always be impressive. Let’s get baking!

Ingredients for alfajor cake

Crispy wafers, nutty dulce de leche, and creamy layers—here’s what you need for that perfect alfajor cake.

The flour matters here—King Arthur or Gold Medal brands work best for that tender, crispy wafer. Butter should be cold when you cut it into the flour, or you’ll end up with tough layers. I always grab European-style butter from Whole Foods or Trader Joe’s for extra richness. The dulce de leche? La Salteña or Nutrex are the gold standards—store-bought saves time, but homemade tastes like love. For the almonds, blend your own if you can find whole almonds—they’re fresher and more flavorful than pre-ground. Skip the pre-shredded stuff, trust me.

No dulce de leche? Homemade caramel sauce (sugar + condensed milk) works in a pinch—just simmer longer for that deep flavor. Running low on powdered sugar? Sift granulated sugar through a fine mesh sieve for a close substitute. Want extra crunch? Toast the ground almonds for 5 minutes before mixing—they’ll smell amazing and add depth. The chocolate chips are optional but Ghirardelli semi-sweet melts beautifully between layers. If you’re feeling fancy, swap the whipped cream for mascarpone cheese mixed with powdered sugar for a fancier touch.

Store the wafers between layers in an airtight container with parchment paper—keeps them crisp for 3 days. The dulce de leche filling stays fresh for 5 days in the fridge, but the cake is even better the next day once flavors meld. Freeze the whole cake (unassembled) for 2 months—just thaw at room temp before assembling. Pro tip: Make the wafers first, then assemble the cake later—no one will know the difference!

Step-by-step instructions for alfajor cake with crispy wafers

Here's how to build this dreamy South American dessert with perfect layers and that signature crunch.

First, let's create the wafer bases that give alfajor cake its signature texture. In a mixing bowl, combine the 3 cups All-Purpose Flour, 0.5 cup Granulated Sugar, 1.5 tsp Baking Powder, and 0.25 tsp Salt. Whisk until evenly distributed—you want no lumps, just a fine, aerated powder mixture.

Cut the 1 cup Unsalted Butter into small cubes and add to the dry ingredients. Using a pastry cutter or your fingers, work the butter into the flour until you get a crumbly texture with pea-sized butter pieces remaining. This creates pockets of fat that will create steam during baking, giving those beautiful crispy layers.

Add the 2 whole Large Eggs one at a time, mixing just until combined. Then stir in the 1 tsp Vanilla Extract. The dough should hold together when pressed but still be crumbly—this is perfect for wafer layers. Divide the dough into 8 equal portions (about 1/8 of the total weight each) and roll each into a thin log about 6 inches long. Place on a parchment-lined baking sheet.

Preheat your oven to 350°F. Bake the wafer logs for 12-15 minutes until they're golden brown and crisp to the touch. Watch carefully—they cook quickly and can burn if you're not paying attention. When done, remove from the oven and let cool completely on a wire rack.

Here's the thing about alfajor wafers—they need to be completely crisp before assembly. If you try to layer them while warm, they'll soften and ruin that perfect crunch. While they cool, prepare your filling by mixing the 1.5 cups Dulce de Leche with 0.5 cup Heavy Cream until smooth. This creates a luscious, spreadable filling that's the heart of every bite.

Once your wafers are completely cool, it's time to build the cake. Place one wafer on a serving plate and spread about 2 tablespoons of the dulce de leche mixture over it. Dust lightly with powdered sugar—this prevents the filling from sticking to your fingers and adds that classic look.

Add another wafer layer at a 45-degree angle to the first, creating a staggered pattern. This creates visual interest and prevents the cake from looking like flat pancakes. Repeat with all 8 wafers, alternating directions with each layer. The final layer should be placed flat on top to create a clean surface for serving.

For that final touch, melt the 0.25 cup Dark Chocolate Chips with 1 tablespoon Heavy Cream (microwave in 20-second bursts, stirring between each) until smooth. Drizzle this chocolate mixture over the top of the cake in an attractive pattern. Sprinkle with ground almonds for that authentic alfajor texture and flavor.

Let the cake sit at room temperature for at least 1 hour before serving—this allows the filling to fully set and the flavors to meld. The result should be layers of crispy wafer that give way to creamy dulce de leche with every bite, finished with rich chocolate and nutty crunch. Real talk: this cake tastes even better the next day when the flavors have really had time to develop!

Creative variations of this alfajor cake

Classic Argentine Style

For an authentic Argentine alfajor cake, use La Salteña dulce de leche and replace the whipped cream with mascarpone cheese mixed with powdered sugar. This version stays true to traditional alfajores by adding crushed meringue between layers for extra lightness. Serve with a dusting of cocoa powder instead of chocolate drizzle—this is how it’s done in Buenos Aires bakeries. 🌎

Mexican Chocolate Twist

Swap the dulce de leche for a Mexican chocolate ganache made with 1 cup chopped Mexican chocolate (like Abuelita or Ibarra), ½ cup heavy cream, and 1 tbsp cinnamon. Add chopped pecans to the ganache for a Tex-Mex fusion. Top with piñon nuts and a sprinkle of tajín for a sweet-spicy kick that’s perfect for brunch. 🌶️

Coconut Cream Variation

For a tropical version, replace the dulce de leche with homemade coconut cream (chill a can of full-fat coconut milk overnight, then scoop out the thick cream). Mix in 1 tsp vanilla and ½ tsp cinnamon, then layer between the wafers. Top with toasted coconut flakes and lime zest for a refreshing, island-inspired dessert. 🥥

Spiced Rum Infusion

Add depth to your dulce de leche filling by stirring in 1 tbsp dark rum (like Appleton Estate) or ½ tsp cinnamon + ¼ tsp nutmeg. For extra richness, fold in 2 tbsp whipped egg whites to lighten the texture. This works beautifully with chopped candied citrus peel on top. Perfect for holiday gatherings! 🎄

Gluten-Free Adaptation

Use a 1:1 gluten-free flour blend (like King Arthur Measure for Measure) and replace the baking powder with ½ tsp xanthan gum to mimic the wafer’s crispness. For binding, add 1 extra egg yolk to the dough. The texture won’t be identical, but it’s still delicious—just expect slightly softer layers. 🌾

Mini Alfajor Cake Cups

For a fun twist, press the dough into mini muffin tins (greased or lined with parchment) and bake at 375°F for 8-10 minutes until golden. Once cool, fill each cup with 1 tsp dulce de leche and top with another wafer. Drizzle with melted chocolate and crushed pistachios for individual servings. Great for parties or meal prep! 🍫

Frequently asked questions