A 1-egg pound cake that delivers ultra-moist layers without the usual butter overload—this is the recipe I’ve perfected after years of baking experiments. The secret lies in a precise ratio of ingredients and vanilla infusion that keeps every slice tender and flavorful. What makes this recipe stand out is its simplicity: no fancy techniques, just reliable results that even beginner bakers can trust.
This cake relies on a foolproof method that replaces traditional butter with oil, yet still achieves that classic pound cake texture. The vanilla bean infusion elevates the flavor without overpowering it, while a touch of sour cream ensures moisture that lasts for days. Baking times are straightforward, and the recipe scales easily for any occasion—whether you’re feeding a crowd or treating yourself to a single slice.
By the time it emerges from the oven, you’ll have perfectly moist layers with a subtle vanilla aroma that fills your kitchen. The crumb stays tender, and the cake holds its shape beautifully, making it ideal for layering with cream cheese frosting or fresh berries. No one will guess it’s made with just one egg—it’s that good.
This recipe also includes tips for adjusting sweetness, adding mix-ins like citrus zest or chocolate chips, and ensuring the perfect rise every time. Ready to bake a cake that’s as impressive as it is easy? Let’s get started.
Ingredients for 1 egg pound cake
Nine simple ingredients for a pound cake so moist it defies expectations—no butter overload here.
| Ingredient | Amount | Notes |
|---|---|---|
| All-Purpose Flour 🌾 | 2 cups | Sifted for even texture |
| Granulated Sugar 🍚 | 1 ½ cups | White or light brown |
| Vegetable Oil 🫒 | 1 cup | Light or canola preferred |
| Large Egg 🥚 | 1 whole | Room temperature for even mixing |
| Vanilla Bean 🌸 | 1 whole | Seeds scraped for infusion |
| Sour Cream 🥛 | ½ cup | Full-fat for moisture |
| Milk 🥛 | ½ cup | Whole milk preferred |
| Baking Powder 🧂 | 1 ½ tsp | Aluminum-free for best rise |
| Salt 🧂 | ½ tsp | Fine sea salt preferred |
| Unsalted Butter 🧈 | ¼ cup | Softened for folding |
| Vanilla Extract 🌿 | 1 tsp | Pure vanilla preferred |
The vanilla bean is non-negotiable for that authentic depth. Trader Joe’s sells them pre-scraped, which saves time, but if you’re using a whole bean, split it lengthwise and scrape out every last bit of those tiny black seeds. The flour? King Arthur or Gold Medal brands are my go-to—they’re sifted and consistent. For the oil, stick with light or canola—it keeps the cake tender without adding butter’s richness. The sour cream and milk combo is what makes this cake stay moist for days after baking, so don’t skimp on the full-fat versions. Pro tip: measure your flour by spooning it into the cup and leveling it off—don’t scoop directly from the bag.
No vanilla bean? Two teaspoons of pure vanilla extract will work, but you’ll miss that complex depth. Running short on sour cream? Plain Greek yogurt at half the amount gets you close. The butter is purely for flavor here—you could omit it entirely if you’re strict about keeping it dairy-light, but trust me, that quarter cup adds a subtle richness that makes it taste like a classic pound cake. For the sugar, I always use a mix of white and light brown (swap half the white for brown if you prefer), but white works perfectly fine if that’s what you’ve got. And if you’re worried about the cake being too sweet, reduce the sugar by two tablespoons—the vanilla and sour cream carry plenty of flavor.
This batter keeps in the fridge for up to 24 hours if you want to prep ahead. For best results, bake immediately, but if you must refrigerate, let it sit at room temperature for 30 minutes before baking to ensure even cooking. Once baked, the cake stays fresh for 4-5 days at room temperature wrapped in plastic, or 1 week in the fridge. Freeze slices for up to 3 months—just thaw at room temperature before serving. The vanilla aroma intensifies as it sits, so if you’re making it ahead for a party, this is a bonus. And if you’re layering with frosting, do it the day of serving—this cake is best enjoyed fresh from the oven or with just a dusting of powdered sugar.
Why You’ll Love This Recipe
- One-Bowl Magic: I swear by this recipe when I’m too tired to measure three separate bowls. Just toss everything—flour, sugar, oil, that single egg, and scraped vanilla—into one and mix. The batter’s thick but not stubborn, and the cake rises like it’s got a secret ingredient (it doesn’t, but you’ll never guess it’s just one egg).
- Vanilla Kiss: Honestly, the vanilla bean here isn’t just flavor—it’s the star. That first slice smells like a bakery, and the taste? Rich, buttery, and somehow more than the sum of its parts. Between us, I’ve tried extracts, but nothing beats the real deal scraped straight from the pod.
- Weeknight Hero: This cake’s my go-to for when I need something fast but still feel fancy. Serve it warm with a drizzle of honey for breakfast, or slice it cold for a no-stress dessert. (Yes, even on a Tuesday night.) The texture stays moist for hours, so it’s always ready when I am.
- Pantry Staple: I make this at least once a month because it’s my budget-friendly backup. One egg, basic flour, sugar—no fancy swaps needed. And leftovers? They last five days in the fridge, perfect for when I’m too lazy to bake again. Plus, it’s the only cake I can make without breaking my grocery budget.
Step-by-step instructions for ultra-moist vanilla pound cake
This method delivers tender layers with perfect moisture retention every time.
Infuse the Vanilla and Prepare Wet Ingredients
Split the vanilla bean lengthwise and scrape out the seeds using the side of a knife. Set the seeds aside and add the empty pod to ½ cup milk in a small saucepan. Heat over low heat for 5 minutes until warm but not boiling. This infuses the milk with vanilla’s deep aroma.
In a separate bowl, whisk together the 1 whole large egg, 1.5 cups granulated sugar, and 1 cup vegetable oil until fully combined. The mixture should be smooth and slightly thickened. This step creates the cake’s signature moist texture by emulsifying the fat and sugar with the egg.
Combine Dry Ingredients and Sour Cream Mixture
In a medium bowl, sift together the 2 cups all-purpose flour, 1.5 teaspoons baking powder, and ½ teaspoon salt. Whisk gently to remove any lumps. In another bowl, mix the ½ cup sour cream with the vanilla-infused milk and 1 teaspoon vanilla extract. The sour cream adds moisture while the extract enhances the vanilla flavor.
Gradually add the dry ingredients to the wet mixture in three additions, mixing just until combined after each addition. Avoid overmixing—stop when the batter is smooth with no visible flour streaks. Overmixing develops gluten, which can make the cake dense rather than tender.
Fold in Butter and Prepare Pans
Add the ¼ cup softened unsalted butter to the batter and gently fold it in using a silicone spatula until fully incorporated. The butter adds richness and helps create that signature pound cake crumb. Grease two 8-inch round cake pans with vegetable oil and line the bottoms with parchment paper.
Divide the batter evenly between the prepared pans, filling each about ⅔ full. Tap the pans gently on the counter to release any air bubbles. This ensures even baking and prevents doming. Bake at 350°F for 25-30 minutes or until a toothpick inserted in the center comes out clean.
Cool and Layer for Maximum Moisture
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. The residual heat helps set the cake structure while preventing a gummy texture. For extra moisture, brush the warm layers with a simple glaze made by whisking ½ cup powdered sugar with 1 tablespoon milk.
Once fully cooled, layer the cakes with a light filling of your choice—vanilla buttercream or whipped cream works best. This method ensures each slice remains moist for days, delivering that classic pound cake texture you crave.
Pro Tips For Making 1 Egg Pound Cake
- WEIGH YOUR FLOUR: That scoop-and-sweep method? It’s the reason your cake might turn out dense or dry. Use a kitchen scale for 120g of flour—pack it lightly but firmly into the cup, then level it off. I learned this the hard way when my first batch collapsed like a soufflé gone wrong.
- SCRAPE THE VANILLA BEAN: Don’t just dump in the seeds—split the bean lengthwise and scrape out every last bit of the creamy insides with a knife. The leftover pod contains hidden flavor gold. (Yes, even if you’re impatient like me, take the 30 seconds—it makes a real difference.)
- BAKE UNTIL 200°F: Your cake’s done when the internal temp hits 200°F, not when it springs back or looks golden. A toothpick with moist crumbs is a lie—wait for that thermometer reading. I burned two cakes checking for bounce instead of temp.
- USE COLD OIL: Chill your vegetable oil in the fridge for 10 minutes before mixing. Cold oil emulsifies better with the egg, giving you a smoother batter and a lighter crumb. (Your future self will thank you.)
Regional styles of this 1 egg pound cake
Southern Classic Style
In the South, pound cakes are often baked in a single 9×13-inch pan and served warm with a dusting of powdered sugar. For this adaptation, reduce the batter by 25% to fit one pan, then bake at 325°F for 40-45 minutes. The lower oven temperature ensures a slow, even rise. Southern cooks often add ½ cup chopped pecans to the batter for texture, and a drizzle of bourbon caramel sauce on top takes it to the next level. 🍯
New England Citrus Twist
New England bakers love bright flavors, so swap ½ cup of the sugar for zest from 1 lemon and 1 orange. Add 1 tablespoon lemon juice to the wet ingredients for extra moisture. Bake in 8-inch pans as directed, then top with a light citrus glaze—mix ½ cup powdered sugar with 1 tablespoon fresh lemon juice and brush over the cooled cake layers. The zesty notes cut through the richness beautifully.
Midwestern Spiced Version
For a cozy Midwestern touch, add 1 teaspoon ground cinnamon and ½ teaspoon nutmeg to the dry ingredients. Replace ½ cup of the sour cream with ½ cup applesauce for extra moisture and subtle sweetness. Bake as usual, then serve with a cream cheese frosting spiked with ½ teaspoon vanilla bean paste for a warm, comforting dessert that’s perfect with coffee.
Pacific Northwest Dark Chocolate
This West Coast favorite swaps vanilla for ½ cup melted dark chocolate (60-70% cocoa) and adds ½ cup chocolate chunks to the batter. Reduce the sugar by 2 tablespoons to balance the richness. Bake in 8-inch pans as directed, then top with a raspberry compote made from 1 cup fresh raspberries, 1 tablespoon honey, and a pinch of salt. The tart berries contrast the deep chocolate flavor perfectly. 🍫
Texas-Style Cinnamon Roll Cake
Turn your pound cake into a showstopper by spreading the batter thinly across a 9×13-inch pan (about ⅛-inch thick). After baking, brush with ½ cup melted butter, then sprinkle with a mix of ½ cup brown sugar, 2 tablespoons cinnamon, and a pinch of salt. Roll the warm cake into a log, cool slightly, then slice and serve with a cream cheese frosting** for a decadent twist on classic cinnamon rolls. 🌶️
Nutrition facts
Frequently asked questions
Why does this recipe use only 1 egg?
The single egg creates a lighter, more tender crumb while keeping the cake moist—no need for multiple eggs to achieve that classic pound cake texture. The oil and sour cream combo replaces the structural role of extra eggs, while the vanilla infusion enhances flavor without heaviness.
Can I make this cake without sour cream?
Yes! Substitute with ½ cup plain Greek yogurt or ½ cup buttermilk for similar moisture. For a dairy-free option, use ½ cup coconut yogurt or ½ cup unsweetened applesauce. The texture will be slightly different but still delicious.
How do I prevent my cake from cracking?
Cracking often happens when cakes cool too quickly. Let the cake cool in the pan for 10 minutes before transferring, and avoid opening the oven door during the last 15 minutes of baking. Also, don’t overfill the pans—fill them only ⅔ full for even rising.
What’s the best way to store leftover cake?
Wrap tightly in plastic wrap or store in an airtight container at room temperature for 4-5 days. For longer storage, freeze slices for up to 3 months. Thaw at room temperature—never microwave, as it can make the cake gummy.
Can I use this recipe for a bundt cake?
Pour the batter into a greased 10-cup bundt pan and bake at 350°F for 40-45 minutes. The oil-based batter prevents dryness, and bundt cakes hold their shape beautifully. Brush with a simple glaze for extra shine.
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