18-Cup Pound Cake Recipe: Double-Layered Richness With Vanilla Bean Infusion

An 18-cup pound cake delivers restaurant-worthy decadence for celebrations—its layers of vanilla bean-infused richness and tender crumb are built to impress. The secret lies in precise layering and slow baking, ensuring each slice stays moist without becoming dense.

This recipe serves 18, making it perfect for gatherings where seconds are inevitable.

What sets this cake apart is the vanilla bean infusion, which transforms ordinary pound cake into something extraordinary. The recipe uses butter for unmatched flavor (though oil works for vegan adaptations) and a foolproof mixing technique that eliminates lumps.

Baking at 325°F ensures even cooking, with a golden brown top that signals perfection.

By the time you pull it from the oven, you’ll have a cake with double-layered richness, a tender crumb, and that signature vanilla aroma that fills every room. The frosting—whether buttercream or cream cheese—adheres beautifully, creating a showstopping dessert that tastes even better the next day.

Whether you’re feeding a crowd or saving for leftovers, this cake delivers restaurant-quality results with minimal effort. Let’s get baking!

Ingredients for 18 cup pound cake

Eighteen servings of restaurant-worthy pound cake start with these precise ingredients—vanilla-infused richness meets tender crumb perfection.

The unsalted butter is non-negotiable here—European-style brands like Plugrá or Kerrygold deliver the highest flavor, though Land O’Lakes works in a pinch. Look for 100% real butter with no additives (the label should say ‘creamery butter’). If you’re adapting for vegan, vegetable oil replaces butter at a 1:1 ratio, though texture will differ slightly. Split the vanilla beans lengthwise before scraping seeds—this ensures even distribution of flavor. For the granulated sugar, Domino is widely available and reliable, but superfine sugar (like C&H) dissolves more smoothly. The all-purpose flour should be bleached or unbleached—just ensure it’s fresh (smell it: stale flour has a musty odor). Sift all dry ingredients together before mixing to prevent lumps.

No vanilla bean paste? Pure Madagascar vanilla extract works at double the amount, but you’ll lose that complex, floral depth the beans provide. Substitute with 1.5 tbsp extract + 1 tbsp sugar to mimic the bean’s sweetness. For the lemon zest, organic lemons yield brighter flavor—avoid non-organic if possible due to wax coatings. Milk can be swapped for heavy cream (same amount) for extra richness, though it’ll alter the crumb slightly. Baking powder must be aluminum-free (like Clabber Girl or Bob’s Red Mill)—aluminum can cause off-flavors. Salt should be fine sea salt (like Diamond Crystal) for even dissolution. Room-temperature eggs blend smoother, but if yours are cold, let them sit in warm water for 10 minutes.

Store unbaked dough in an airtight container for up to 24 hours in the fridge—cover with plastic wrap to prevent drying. Baked layers keep at room temperature for 3 days wrapped tightly in foil, or 1 week refrigerated. For long-term storage, freeze layers unfrosted between parchment for up to 3 months. Frosted cake lasts 5 days refrigerated or 2 months frozen. Thaw overnight in the fridge before serving—rushing causes condensation. Slice with a serrated knife dipped in hot water for clean cuts every time.

Step-by-step instructions for double-layered vanilla bean pound cake

Mastering this classic requires precision in mixing and baking techniques for perfect layers.

In a medium bowl, whisk together the 3.5 cups all-purpose flour, 1.5 tbsp baking powder, and 1.5 tsp salt. Sift this mixture through a fine-mesh sieve directly into a large mixing bowl to aerate the flour and ensure even distribution. This step prevents dense cake layers and promotes a light crumb structure.

In a separate heatproof bowl, combine the 1.5 cups milk and 0.5 cup vegetable oil. Microwave for 30-45 seconds until warm but not hot to the touch. This gentle warming helps the oil emulsify better with the eggs later. Meanwhile, split the 2 whole vanilla beans lengthwise and scrape out the seeds into the warm milk mixture. Add the 2 tbsp vanilla bean paste and 1 tbsp lemon zest, stirring well to infuse the liquid with maximum vanilla flavor.

In a stand mixer fitted with the paddle attachment, beat the 1.5 cups unsalted butter (cold and cubed) on medium speed until creamy but not melted, about 2-3 minutes. Gradually add the 3.5 cups granulated sugar while mixing on medium-high speed for 4-5 minutes until the mixture is light, fluffy, and has nearly doubled in volume.

This creaming process incorporates air into the batter, which is crucial for that signature pound cake texture. You’ll know it’s ready when the mixture turns pale and leaves clean streaks on the bowl when you lift the paddle. Scrape down the sides of the bowl with a spatula to ensure even mixing before proceeding.

With the mixer running on low speed, add the 6 whole large eggs (room temperature) one at a time, allowing each to incorporate fully before adding the next. After all eggs are incorporated, gradually pour in the warm milk mixture in a slow, steady stream while mixing on low speed. This gradual addition prevents deflation of the batter.

With the mixer still running on low speed, add about one-third of the sifted dry ingredients to the wet mixture. Mix just until combined, then add another third and mix again. Finish by adding the remaining dry ingredients and mixing on low speed until just combined—do not overmix. The batter should be smooth and thick, with a ribbon consistency that holds its shape when the paddle is lifted.

Preheat your oven to 350°F. Divide the batter evenly between two 9-inch round cake pans (8-9 ounces each), lined with parchment paper circles and lightly greased with butter. Tap each pan firmly on the counter 2-3 times to remove any air bubbles and ensure even baking.

Bake for 25-30 minutes, or until a toothpick inserted into the center comes out clean and the tops spring back when gently pressed. Rotate the pans halfway through baking for even heat distribution. The cakes should be golden brown with a slightly domed top. Remove from the oven and let cool in the pans for 10 minutes, then transfer to a wire rack to cool completely before assembling.

Once both layers are completely cool, place one layer on a serving plate. Spread a thin layer of vanilla bean paste mixed with 2 tsp vanilla extract (about 1 tbsp) over the top, then place the second layer on top. Dust the entire cake with powdered sugar for a classic finish.

Slice into 18 equal portions for serving. The cake should have a tender crumb with a subtle vanilla-lemon aroma and a moist texture that holds up well for 3-4 days when stored in an airtight container. For best results, serve at room temperature to appreciate the full depth of the vanilla bean infusion.

Serving suggestions for leftovers

Classic Frosting Pairings

For a timeless finish, top your cake with vanilla buttercream made from 1 cup softened unsalted butter, 4 cups powdered sugar, and 2 tbsp vanilla extract.

Whip until fluffy and spread between layers or on top. I like to add 1 tsp lemon zest for brightness that complements the cake’s vanilla notes. 🍰

For a lighter option, try cream cheese frosting—mix 8 oz cream cheese, ½ cup butter, and 3 cups powdered sugar until smooth. This adds a tangy contrast that balances the cake’s richness. Chill the frosting for 30 minutes before assembling to prevent melting.

Fruit Toppers

Fresh berries add a vibrant pop of color and freshness. Arrange raspberries, blackberries, and sliced strawberries in a circular pattern on top of the frosting. For a Southern touch, try peach slices lightly caramelized with 1 tbsp brown sugar and a pinch of cinnamon.

Warm the fruit for 2-3 minutes in the microwave before placing on the cake.

Citrus lovers will adore a lemon curd drizzle. Heat ½ cup lemon curd (store-bought or homemade) with 1 tsp lemon zest until warm, then drizzle over the frosting in a zigzag pattern. The acidity cuts through the cake’s sweetness beautifully.

Garnishes for Elegance

Sprinkle toasted coconut flakes over the frosting for a tropical twist—just toast ½ cup unsweetened coconut in a dry pan over medium heat for 3-4 minutes until golden. Let cool before adding. For a rustic look, scatter crushed pistachios or almonds around the base of the cake.