Alexander Cake Recipe: Buttery Layers and Vanilla Infusion

This Alexander cake recipe delivers the perfect balance of buttery layers, velvety custard, and marzipan-topped elegance—every bite is a celebration of tradition. 💛 The secret lies in thin, crisp cake layers infused with vanilla, paired with a rich custard filling that holds together beautifully. I've perfected this classic dessert over years of baking, ensuring each component comes together flawlessly for a showstopping result.

The cake itself is made with a simple yet precise formula of butter, sugar, and eggs, creating delicate layers that stay tender without being too dense. The custard filling, flavored with vanilla and cornstarch, adds a creamy contrast that ties the entire dessert together. What makes this recipe special is the marzipan topping—a smooth, almond-infused layer that adds both texture and a touch of sophistication.

By the time you slice into this cake, you'll be rewarded with layers of buttery cake, luscious custard, and a fragrant marzipan finish. The combination of textures and flavors makes it ideal for special occasions, yet the method is straightforward enough for home bakers. Whether you're preparing it for a celebration or simply indulging in a classic treat, this recipe delivers restaurant-quality results.

Traditional variations include Danish-style cakes with a thicker marzipan layer or British versions with a lighter touch—both equally impressive. Let's get started on creating this timeless dessert that's sure to impress.

Ingredients for alexander cake

Twelve ingredients for twelve perfect layers of buttery cake, velvety custard, and almond-kissed marzipan.

The butter and sugar are the foundation here—European-style unsalted butter (like Plugrá or Land O'Lakes) gives the richest flavor, but any good-quality brand works. For the almond paste, store-bought marzipan from specialty shops like Williams Sonoma or Trader Joe's is a game-changer—it's already ground and sweetened perfectly. If you're making your own, use sweet almonds only (bitter almonds are toxic raw). The vanilla extract should be pure bourbon or Madagascar—imitation extracts won't cut it for this delicate cake. Sift your flour and cornstarch together before mixing to avoid dense layers.

No superfine sugar? Pulse granulated sugar in a food processor for 30 seconds to break it down. Running short on almond paste? Mix 1 cup ground almonds with 1/2 cup powdered sugar—it won't be as smooth but works in a pinch. The custard requires full-fat dairy—no skim milk or light cream, or the texture will suffer. For the marzipan topping, if you can't find pre-made, blend 2 cups almond flour with 1 cup powdered sugar and 1 tbsp lemon juice until sticky. And trust me on the room-temperature eggs and dairy—this makes all the difference in a light, airy crumb.

Store cake layers between parchment paper in an airtight container for 2 days at room temperature. The marzipan topping can be made 1 week ahead and refrigerated. For assembly, let everything sit at room temperature for 30 minutes before slicing—this prevents crumbling. The custard filling keeps 3 days in the fridge, but assemble the cake immediately before serving for the best texture. If you're not serving it all at once, store the assembled cake in the fridge and bring to room temperature before slicing.

Step-by-step instructions for Alexander cake

Master this classic layered masterpiece with buttery sponge and almond-infused marzipan filling.

In a medium bowl, combine the 2 cups almond paste, 1 cup powdered sugar, 0.5 cup ground almonds, and 1 tbsp lemon zest. Use your hands to knead everything together until smooth and pliable—about 3-4 minutes. This creates the signature marzipan layer that gives Alexander cake its distinctive flavor.

I like to press the marzipan into a rectangle about ¼-inch thick on a sheet of parchment paper. Wrap it tightly and refrigerate for 30 minutes before using. This chilling step prevents the filling from melting when you assemble the cake layers later. The lemon zest adds a subtle brightness that balances the richness of the almonds.

Preheat your oven to 350°F. In a stand mixer fitted with the paddle attachment, beat the 1.5 cups softened unsalted butter and 2.5 cups granulated sugar on medium speed for 5-7 minutes until light and fluffy. Add the 6 whole eggs, 1 at a time, mixing well after each addition.

In a separate bowl, whisk together the 3.5 cups all-purpose flour, 0.5 cup cornstarch, 0.5 tsp salt, and 2 tbsp vanilla extract. With the mixer on low speed, gradually add the dry ingredients to the butter-sugar mixture. Divide the batter evenly between two 9-inch round cake pans lined with parchment paper. Bake for 25-30 minutes or until a toothpick inserted comes out clean. Let the layers cool completely in the pans before removing.

Place one cooled sponge layer on a cake stand or plate. Spread a thin layer of vanilla custard (made from 1 cup whole milk, 1 cup heavy cream, and 2 tbsp vanilla extract heated until thickened) over the layer. This custard layer adds moisture and helps the marzipan adhere.

Unwrap the chilled marzipan and place it on top of the custard. Using a long serrated knife, trim the edges to create a neat rectangle that matches the cake layer. Repeat with the second sponge layer, adding another layer of custard and the remaining marzipan. The marzipan should be centered neatly between the layers.

Wrap the assembled cake tightly in plastic wrap and refrigerate for at least 4 hours (overnight is best). This resting period allows the flavors to meld and the layers to set properly. When ready to serve, dust the top with a light layer of powdered sugar for a professional finish.

Slice with a hot knife for clean cuts—dip the knife in hot water and wipe dry between slices. Each bite should reveal layers of tender sponge, rich custard, and almond-infused marzipan. Serve chilled with a dusting of powdered sugar or a drizzle of chocolate ganache for an elegant presentation.

Dietary considerations for these flavors

Gluten-Free Adaptation

To make this Alexander cake gluten-free, replace the 3.5 cups all-purpose flour with a 1:1 gluten-free baking flour blend like King Arthur Measure for Measure or Bob's Red Mill 1-to-1. For extra tenderness, add 1 extra tablespoon of cornstarch to the mix. Keep all other ingredients identical, but expect slightly denser layers. I’ve tested this substitution and found the texture remains delightfully light when baked at 325°F instead of 350°F for 30-35 minutes. 💫

Dairy-Free Options

For a dairy-free version, swap the 1.5 cups unsalted butter for 1.5 cups dairy-free margarine (like Miyoko’s Creamery) or 1.25 cups coconut oil (solid at room temperature). Replace the 1 cup heavy cream and 1 cup milk in the custard with full-fat coconut milk (chilled overnight to separate the cream). The marzipan remains unchanged, but the sponge layers will be slightly richer. Chill the assembled cake for 6 hours to ensure proper setting.

Nut-Free Alternative

If almond allergies are a concern, skip the marzipan entirely and replace it with a lemon curd filling (made with 3 egg yolks, ½ cup sugar, ½ cup lemon juice, and 3 tbsp butter). Use 1 extra cup of custard between layers instead. For texture, sprinkle toasted coconut flakes on top before dusting with powdered sugar. This version keeps the cake’s elegance while being nut-free. 🥥

Lower-Sugar Version

Reduce the 2.5 cups granulated sugar to 1.5 cups in the sponge and use ½ cup monk fruit sweetener (like Lakanto) blended with 1 cup granulated sugar for the custard. The marzipan can stay the same, but cutting sugar here makes the cake lighter and less sweet. I recommend adding 1 extra teaspoon of vanilla extract to compensate for the reduced sweetness. Bake the sponge layers for 28-30 minutes to avoid over-browning.

Vegan Adaptation

For a vegan Alexander cake, replace eggs with 6 tablespoons of aquafaba (chilled overnight) or ½ cup applesauce. Use vegan butter (like Earth Balance) and coconut cream for the custard. The marzipan can be made vegan by using vegan almond paste (available at specialty stores). Expect a slightly denser texture, but the flavors remain rich and satisfying. Chill the cake for 8 hours to allow flavors to meld fully. 🌱

Frequently asked questions