A single egg can create a cake that’s impossibly moist and tender—this 1-egg oil cake proves it. The secret lies in using oil instead of butter, which creates ultra-light layers without requiring extra eggs. I’ve perfected this recipe over years of baking, ensuring every slice stays fresh for days. What makes it special is how simple yet foolproof it is—no complicated techniques, just a few ingredients and precise timing.
The oil-based method delivers a moist, almost custard-like texture that stays soft even after cooling. Unlike traditional butter cakes, this version doesn’t dry out, making it ideal for beginners or anyone looking for a reliable dessert. The recipe works for vanilla, chocolate, or even citrus variations, all while keeping the same tender crumb. Perfect for a quick afternoon treat or a last-minute dessert, this cake comes together in one tin with minimal effort.
By the time you pull it from the oven, you’ll have layers that are light yet sturdy enough to hold frosting or fruit. The aroma alone—warm vanilla or rich cocoa—will have everyone asking for seconds. This isn’t just a cake; it’s a restaurant-quality dessert you can make at home with basic ingredients. Ready to bake? Let’s get started.
Serve it plain with a dusting of powdered sugar, layer it with whipped cream, or pair it with coffee for a classic treat. The possibilities are endless, but the foundation remains the same: one egg, oil, and a perfect rise. Every bite will remind you why simple recipes often deliver the best results.
Ingredients for 1 egg cake recipe with oil
Eight simple ingredients transform into restaurant-quality cake with just one egg and oil magic.
| Ingredient | Amount | Notes |
|---|---|---|
| Large Egg 🥚 | 1 whole | Room temperature for best mixing |
| Vegetable Oil 🫒 | ½ cup | Light or canola preferred |
| Granulated Sugar 🍚 | 1 cup | White or light brown |
| All-Purpose Flour 🌾 | 1 ½ cups | Sifted for even texture |
| Baking Powder 🧂 | 1 ½ tsp | Aluminum-free for best rise |
| Vanilla Extract 🍯 | 1 tsp | Pure, not imitation |
| Salt 🧂 | ½ tsp | Fine sea salt |
| Milk 🥛 | ½ cup | Any variety works |
| Unsalted Butter 🧈 | 2 tbsp | For greasing the pan |
| Powdered Sugar 🍚 | 2 tbsp | For dusting, optional |
The vegetable oil is the game-changer here—it keeps this cake impossibly moist without the richness of butter. Any neutral oil works, but light or canola has the cleanest flavor. The egg needs to be room temperature (pop it in warm water for 5 minutes if it’s cold from the fridge). For flour, I always grab King Arthur or Bob’s Red Mill—they’re reliable for baking. The vanilla extract should smell strong and pure; if it’s faint, grab a fresh bottle. Pro tip: measure your dry ingredients by weight if you have a kitchen scale—it’s more accurate than volume.
No vanilla extract? Almond extract at half the amount works in a pinch (but it tastes different). Short on milk? Water or plant-based milk keeps the cake tender. The baking powder is non-negotiable—aluminum-free is key for a proper rise. If you’re making this ahead, the cake actually tastes better the next day as the flavors meld. For a chocolate version, swap 1/4 cup of the sugar for cocoa powder. The powdered sugar dusting is optional but adds that bakery-fresh touch—skip it if you prefer a cleaner finish.
This cake keeps beautifully for 4 days wrapped in plastic at room temperature, or 1 week in the fridge. For longer storage, slice and freeze portions between parchment paper for up to 3 months. The secret to reheating is low and slow—wrap a slice in foil and warm in a 300°F oven for 10 minutes. I always bake two pans at once (double the recipe) because it disappears faster than you’d think. Leftovers? Toss them in a sandwich with whipped cream—trust me on that.
Why You’ll Love This Recipe
- No Mixing Madness: I swear by this recipe—just crack the egg, fold in the dry ingredients, and pour. No stand mixer, no overmixing the flour into a brick. The oil keeps it tender, so the cake rises light without fighting you.
- Sweet & Simple Magic: That one egg? It’s the star. The sugar caramelizes just enough to give it a subtle golden crust, while the baking powder lifts it into fluffy layers. Honestly, it tastes like a bakery cake but with half the ingredients.
- Breakfast or Snack: Serve it warm with a drizzle of honey for a lazy morning treat, or cut into squares for a quick after-school snack. My kids grab these straight from the pan—no judgment here.
- Pantry Staple Power: You already have everything. No specialty flours, no weird ratios. A single egg, a splash of oil, and a handful of sugar? That’s it. Budget-friendly, no waste, and it keeps for days in the fridge.
Step-by-step instructions for ultra-moist one-tin cake
Here’s how to bake a perfectly tender cake with just one egg and oil—no dry crumbs in sight!
Mix Wet Ingredients for Maximum Moisture
In a large mixing bowl, combine the 1 whole Large Egg, 0.5 cup Vegetable Oil, and 1 cup Granulated Sugar. Whisk vigorously for 2-3 minutes until the mixture becomes pale and nearly doubles in volume. You’re incorporating air here—the key to that light, cloud-like texture. The oil keeps everything moist while the sugar helps create that tender crumb.
Next, stir in the 1 tsp Vanilla Extract and 0.5 tsp Salt. This is where the flavor foundation gets built. The salt might seem small, but it balances the sweetness and enhances all the other flavors. I like to taste the mixture at this point—it should be sweet, rich, and properly seasoned. If you’re using light brown sugar, you’ll notice a subtle caramel note that adds depth.
Combine Dry Ingredients and Milk
In a separate bowl, sift together the 1.5 cups All-Purpose Flour and 1.5 tsp Baking Powder. Sifting prevents lumps and ensures even distribution of the leavening agent. This step is crucial—uneven baking powder can lead to dense spots in your cake.
Make a well in the center of the dry ingredients and pour in the 0.5 cup Milk. Gently fold this mixture into the wet ingredients using a spatula, being careful not to overmix. You want to combine just until everything is incorporated—you should still see some flour streaks. Overmixing develops gluten, which makes cakes tough instead of tender. The batter should be smooth and slightly thick, like heavy pudding.
Prepare the Pan for Perfect Release
Preheat your oven to 350°F. Generously grease an 8-inch round cake pan with 2 tbsp Unsalted Butter, making sure to get into all the corners and crevices. Then line the bottom with parchment paper for easy removal. I also like to lightly grease the parchment paper to prevent sticking. This preparation ensures your cake will slide out cleanly without tearing.
Pour the batter into the prepared pan and smooth the top with a spatula. Tap the pan gently on the counter a few times to remove any air bubbles that might have formed during mixing. This creates an even surface for baking. The batter should come about two-thirds of the way up the sides of the pan—this recipe makes one thick layer perfect for slicing.
Bake Until Golden and Springy
Bake for 30-35 minutes until a toothpick inserted into the center comes out clean. The cake should be golden brown on top with slightly pulled edges. Here’s the thing—this cake is delicate, so don’t overbake. The moment the toothpick test passes is when you should remove it from the oven. If you wait too long, it’ll dry out.
Let the cake cool in the pan for 10 minutes before transferring it to a wire rack to cool completely. This resting period allows the moisture to redistribute, preventing a dry top. While it’s cooling, I like to make a simple glaze by mixing the 2 tbsp Powdered Sugar with 1-2 teaspoons of milk (the same amount you used in the batter). Brush this lightly over the top of the cooled cake for that professional finish.
Pro Tips For Making 1 Egg Cake Recipe With Oil
- Whisk Egg Until Ribbon Stage: Stop when the egg mixture stretches into a thin, slow-moving ribbon—about 30 seconds past when it looks fully combined. I learned this the hard way after making a cake that collapsed like a sad soufflé. That extra whisking adds structure without overmixing.
- Use Room-Temp Eggs: Cold eggs make the batter thick and lumpy. Pop that egg in warm water for 5 minutes before cracking—it blends smoother and the cake rises better. (Yes, even if you’re impatient like me.)
- Don’t Overfill the Pan: Fill the greased pan only halfway—this cake expands more than you’d think. I used to pack it too high and ended up with a dense, gummy center. Trust me, less is more here.
- Add Oil Gradually: Drizzle in the oil while folding the dry ingredients—this keeps the texture light instead of greasy. I was skeptical until I tried it, and now I won’t go back. (About 2 tablespoons total, enough to coat the flour.)
Creative variations of this recipe
Chocolate Twist
Swap ¼ cup of the granulated sugar for ¼ cup unsweetened cocoa powder to create a rich chocolate version. Use 1 tsp espresso powder in the milk mixture to deepen the chocolate flavor—trust me, it makes a difference! For extra decadence, fold in ½ cup mini chocolate chips right before baking. The oil keeps this version moist despite the cocoa’s drying effect, and the result is a fudgy yet tender cake that’s perfect with whipped cream or a dusting of cocoa powder. 🍫
Citrus Zest Version
Add 1 tbsp lemon or orange zest to the wet ingredients and replace ½ tsp vanilla extract with ½ tsp almond extract for a bright citrus twist. The oil’s neutral flavor lets the citrus shine while keeping the cake tender. Top with a simple glaze made from 2 tbsp powdered sugar and 1 tsp lemon juice for a refreshing finish. This version pairs beautifully with afternoon tea or a slice of fresh fruit. 🍊
Spiced Chai Cake
Infuse the milk with 1 tsp chai spice blend (or a mix of ½ tsp cinnamon, ¼ tsp cardamom, ¼ tsp ginger, and pinch of cloves) while heating it slightly. The oil’s richness balances the spices beautifully, creating a cake with warm, aromatic notes. Add ½ tsp ground cinnamon to the dry ingredients for extra depth. Serve with a dollop of whipped cream and a sprinkle of cinnamon for a cozy dessert. ✨
Lemon Poppy Seed
Fold 1 tbsp poppy seeds into the batter and add 1 tbsp lemon juice to the wet ingredients for a tangy, textured variation. The oil keeps the cake moist despite the seeds’ slight drying effect. Top with a glaze of 2 tbsp powdered sugar and 1 tsp lemon juice, then garnish with extra poppy seeds for crunch. This version is light yet satisfying, perfect for brunch or a light dessert. 🌸
Matcha Green Tea
Replace 1 tbsp flour with 1 tbsp matcha powder for an earthy, vibrant twist. The oil’s neutral flavor lets the matcha’s umami notes shine without overpowering. Add 1 tsp vanilla extract to balance the bitterness. Dust the top with powdered sugar for contrast, or serve with a side of white chocolate ganache. This cake is a crowd-pleaser with its unique color and subtle flavor. 🍵
Coconut Lime
Stir ¼ cup shredded coconut into the batter and add 1 tbsp lime zest to the wet ingredients. The oil’s creaminess complements the tropical flavors perfectly. Top with toasted coconut flakes and a drizzle of lime glaze (2 tbsp powdered sugar + 1 tsp lime juice). This version tastes like a vacation in every bite. 🥥
Nutrition facts
Frequently asked questions
Why does this recipe use oil instead of butter?
The oil creates a moist, tender crumb without needing extra eggs to emulsify. Unlike butter, oil doesn’t solidify when cooled, so your cake stays soft for days. It also makes the batter lighter since oil blends more easily than butter, resulting in that signature cloud-like texture. Plus, it’s foolproof for beginners!
Can I make this cake without a mixer?
Whisk the wet ingredients by hand for 3-4 minutes until pale and thick. For the dry ingredients, use a fork to gently fold them in—just don’t overmix. The key is patience: keep stirring until the batter is smooth but still slightly lumpy. A rubber spatula helps scrape the bowl clean for perfect results.
What if my cake sinks in the middle?
This usually happens from overmixing or opening the oven too soon. For next time, fold the dry ingredients just until combined (you should see flour streaks). Also, bake until a toothpick comes out clean—don’t rely on time alone. If it happens, slice off the domed top, then level the cake and rebake for 5-10 minutes at 325°F to firm up.
How do I store leftovers to keep them fresh?
Wrap the cake tightly in plastic wrap and store at room temperature for 3 days. For longer storage, refrigerate for up to 1 week or freeze slices between parchment paper for 3 months. To reheat, wrap a slice in foil and warm at 300°F for 10 minutes—this restores that fresh-baked moisture.
Can I substitute the milk for something else?
Yes! Use water, almond milk, or even coconut milk in equal amounts. The oil already provides richness, so the milk’s job is just to hydrate the flour. For extra flavor, try warm spiced milk (like chai or cinnamon) in the variations section. Just don’t skip it—the milk helps create that perfect tender crumb.
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