Duke's Mayo Cake Recipe: Southern-Style Layers of Vanilla and Buttermilk Bliss

Duke's mayo cake recipe delivers the iconic Southern dessert that's been a staple at Duke's Family Restaurant for decades—a tender, moist cake with layers of vanilla and buttermilk flavor that melts in your mouth.

The secret lies in the mayonnaise, which creates that signature fine crumb and keeps every slice impossibly tender. I've perfected this version after years of testing, ensuring it delivers the same restaurant-quality results at home with just a few simple ingredients and 45 minutes of active time.

What makes this cake truly special is its foolproof method—no fancy techniques required, just precise measurements and a gentle hand when mixing the batter. The mayonnaise and buttermilk combination creates a cake that's light yet rich, with a delicate crumb that's perfect for slicing.

Baked at 350°F until golden, it emerges from the oven with that classic Southern charm that makes it worth every bite.

The result is a cake that's moist enough to be eaten plain but rich enough to stand up to whipped cream or fresh berries. Each slice reveals layers of vanilla and buttermilk flavor that balance perfectly, creating a dessert that's both comforting and elegant.

This is the kind of cake that disappears quickly at gatherings—people won't believe it's made with mayo until they taste it.

Serve it warm with vanilla ice cream or dusted with powdered sugar for a classic presentation. The recipe scales easily for parties, and leftovers keep well for 3-4 days if stored properly. Here's everything you need to create this Southern legend in your own kitchen.

Ingredients for duke's mayo cake

Southern classic made with simple pantry staples that deliver restaurant-quality tenderness.

The mayonnaise is non-negotiable—Duke's Original or Hellmann's are the gold standards here. Grocery store brands work if they're full-fat, but avoid the lighter versions. For the buttermilk, full-fat is crucial—it's what gives this cake its signature richness. If you're short on time, mix 1 tablespoon lemon juice or vinegar with 1 cup milk and let it sit for 5 minutes. The flour should be sifted before measuring to ensure a light, airy crumb. Bob's Red Mill or Gold Medal are reliable brands for consistent results.

No Duke's mayo? Hellmann's or Best Foods are the closest substitutes—just make sure it's full-fat. Short on buttermilk? Substitute with 1 cup milk plus 1 tablespoon vinegar, but let it thicken for 10 minutes. The powdered sugar for dusting can be swapped for coarse sugar or even turbinado if you prefer a different texture. For the vanilla, imitation extracts won't cut it—use pure vanilla extract or even vanilla bean paste for extra depth. The eggs should be room temperature for even baking, but if they're cold, just let them sit out for 30 minutes.

This cake keeps beautifully for 3-4 days at room temperature, wrapped tightly in plastic wrap. For longer storage, refrigerate for up to 1 week or freeze for up to 3 months. To reheat, wrap slices in a damp paper towel and microwave for 10-15 seconds. The cake reheats wonderfully and tastes even better the second day. For serving, vanilla ice cream or whipped cream are classic pairings, but fresh berries add a lovely contrast.

Step-by-step instructions for Duke's mayo cake

This Southern classic delivers moist layers with a tender crumb—here's how to bake it perfectly every time.

In a large mixing bowl, whisk together the 1 cup mayonnaise, 1 cup buttermilk, 0.5 cup vegetable oil, 1.5 cups granulated sugar, 2 teaspoons vanilla extract, and 3 whole large eggs. Use a hand mixer on medium speed for 2-3 minutes until the mixture is completely smooth and homogeneous. The mayonnaise and oil create a rich, moist base that keeps this cake tender even after multiple layers.

Here's the thing—don't skip the whisking. You want to fully incorporate all ingredients so the mayonnaise doesn't separate later. The mixture should be thick but pourable, like heavy batter. If it looks too thin, add 1 tablespoon of the all-purpose flour to help stabilize it. Let the bowl sit for 5 minutes while you prepare the dry ingredients—this resting period helps the flavors meld.

In a separate bowl, sift together the 2.5 cups all-purpose flour, 2 teaspoons baking powder, and 0.5 teaspoon salt. This creates a light, airy base that will distribute evenly throughout the batter. Using a rubber spatula, gently fold the dry ingredients into the wet mixture in three additions, mixing just until combined after each addition. Overmixing develops gluten, which makes the cake dense instead of tender.

I know it seems weird to mix so gently, but trust me—this cake relies on its moist texture, not structure. You'll know you've done it right when there are still a few flour streaks visible. The batter should be thick but smooth, like cookie dough. If it's too stiff to fold easily, add 1 tablespoon of buttermilk to loosen it. Cover the bowl and let the batter rest for 10 minutes at room temperature—this allows the flour to fully hydrate and the baking powder to activate.

Preheat your oven to 350°F and grease three 8-inch round cake pans with vegetable oil or butter, then line the bottoms with parchment paper. The pans should be lightly oiled but not dripping—excess oil can cause the cake to sink in the center. Divide the batter evenly among the pans, filling each about ⅔ full. Tap each pan gently on the counter 2-3 times to remove any air bubbles that might have formed during mixing.

Bake for 25-30 minutes or until a toothpick inserted in the center comes out clean. The edges should be golden brown, but don't worry if the tops look slightly underdone—they'll finish cooking as the cakes cool. I press down gently on the center of each cake during the last 5 minutes of baking to prevent doming. This ensures even baking and a level surface for layering later.

Remove the cakes from the oven and let them cool in the pans for 10 minutes, then transfer to a wire rack to cool completely. While they cool, prepare the powdered sugar glaze by whisking together the 0.5 cup powdered sugar with 2-3 tablespoons of buttermilk (from the original amount) until smooth. You want a thin, syrupy consistency that will coat the layers without making them soggy.

Once the cakes are completely cool, level the tops if needed using a serrated knife. Place the first layer on a cake stand or plate, then spread a thin layer of glaze on top. Add the second layer, then another thin layer of glaze, and finally the third layer. Brush any remaining glaze over the sides of the cake for a decorative finish. The powdered sugar glaze adds sweetness without overwhelming the cake's natural vanilla-buttermilk flavor.

Make-ahead tips for this recipe

Prep Ahead Strategy

This cake is perfect for making ahead—prepare the batter up to 24 hours in advance and store it in an airtight container in the refrigerator. The flavors deepen overnight, and the batter will be perfectly chilled for baking.

I like to mix the batter the night before and bake fresh the next morning for that restaurant-quality texture. 💫

Baking in Advance

Bake the cake layers 1 day ahead and store them wrapped tightly in plastic wrap at room temperature. The cakes will keep their moisture and tenderness, making them ideal for last-minute gatherings. When ready to serve, simply reassemble with fresh glaze.

If you prefer, you can also refrigerate the fully assembled cake for up to 3 days—just bring it to room temperature before serving.

Freezing for Later

For long-term storage, freeze the baked cake layers individually, wrapped tightly in plastic wrap and placed in a freezer bag. They’ll keep for up to 3 months. To serve, thaw overnight in the refrigerator, then reassemble with a fresh glaze.

The texture remains perfectly moist, and the flavors stay vibrant. I’ve even frozen fully assembled cakes—just wrap them extra carefully to prevent freezer burn.

Glaze Prep Shortcut

Make the powdered sugar glaze 2 days ahead and store it in a small airtight container in the refrigerator. The glaze will thicken slightly, so just whisk in 1-2 teaspoons of buttermilk to loosen it before using.

This saves time on serving day and ensures you’re always ready to assemble the cake with minimal effort. 💡

Portioning for Parties

Cut the cake into slices and wrap each individually in plastic wrap. Store them in a single-layer container in the refrigerator for up to 4 days. To serve, simply remove the wrap and dust with powdered sugar.

This method keeps each slice fresh and prevents the cake from drying out. Guests will love the convenience of pre-portioned slices, especially for buffet-style events.

Reheating Leftovers

If you have leftovers, reheat slices in the microwave for 10-15 seconds wrapped in a damp paper towel to restore moisture. Alternatively, warm them in a 350°F oven for 5-7 minutes until heated through.

Reheated slices taste just as good as fresh—perfect for enjoying this cake over multiple days without sacrificing texture. 🔥

Frequently asked questions