Lemon Poppy Seed Bundt Cake

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Searching for the ultimate lemon Bundt cake? This Lemon Poppy Seed Bundt Cake is packed with fresh lemon flavor, incredibly moist thanks to sour cream and butter, and finished with a silky lemon cream cheese frosting. It's my favorite summer lemon dessert!

I Made the Most Lemony Bundt Cake Ever

This Lemon Poppy Seed Bundt Cake with Lemon Cream Cheese Frosting is what happens when I decide a cake doesn't need berries, sprinkles, or anything else competing for attention. It's just a really good lemon cake made with sour cream and fresh lemon juice. It's rich, buttery, and packed with real lemon in every bite.

I pipe a lemon cream cheese frosting over the cooled cake instead of pouring it, so you get that beautiful bakery-style presentation with minimal extra effort. I promise this works even if Bundt cakes intimidate you. There's no layering, no stacking, no leveling. You mix, you bake, you invert, and the pan does the rest.

I've made a lot of citrus Bundt cakes over the last 2 years, including my Lemon Blueberry Bundt Cake and Lemon Raspberry Bundt Cake, but this one is for the purists who want lemon and poppy seed to be the stars of the show, no berries required. Let me show you how easy this is to pull together, even if you've never baked a Bundt cake before.

Tell Me More About This Lemon Bundt Cake

• Bursting with real lemon flavor - both fresh lemon zest and fresh lemon juice go into the cake and the frosting, so the citrus flavor is bright, not artificial.
• Incredibly moist crumb - a combination of sour cream, butter, and oil keeps this cake soft for days just like my Key Lime Bundt Cake.
• No stand mixer required - a hand mixer and two bowls are all you need.
• No layering or stacking - just like my Pistachio Bundt Cake, this is a one-pan bake that looks impressive with very little effort.
• Make-ahead friendly - bake the cake a day ahead and frost it the next day; it holds up beautifully.
• That signature poppy seed crunch - a little textural contrast against the soft, tender crumb.
• Show-stopping presentation - I piped lemon cream cheese frosting in a cascading manner down a Bundt cake. It looks impressive, but it's really simple to do.

Ingredients You'll Need

This recipe consists of 2 components: lemon bundt cake and lemon cream cheese frosting. Scroll down to the recipe card for precise ingredient amounts and complete instructions, or keep reading for my notes on the key ingredients.

1) Cake Ingredients

• All-purpose flour - the base of the cake. I don't recommend substituting cake flour here; this recipe is built around all-purpose.
• Baking powder and baking soda - using both gives the cake the right lift and a tender crumb.
• Salt - balances the sweetness and makes the lemon flavor pop.
• Poppy seeds - for that classic lemon-poppy seed crunch. Don't skip these; they're what makes this cake feel like the real deal, not just a plain lemon cake.
• Granulated sugar and lemon zest - I rub the zest into the sugar with my fingers before adding anything else. This releases the lemon oils into the sugar and infuses the whole cake with flavor from the very first step. It's the same trick I use in my Lemon Raspberry Cake.
• Unsalted butter, softened - creamed with the lemon sugar for a light, fluffy base.
• Large eggs, room temperature - room temperature eggs incorporate more smoothly and help the batter stay emulsified.
• Vanilla extract - rounds out the citrus flavor and adds subtle sweetness.
• Flavorless oil - I use canola oil. The combination of butter (flavor) and oil (moisture) is what keeps this cake so soft.
• Fresh lemon juice - always use freshly squeezed, never bottled, for the best flavor.
• Sour cream - adds richness and moisture, and keeps the crumb tender. Full-fat is best here.

2) Lemon Cream Cheese Frosting Ingredients

• Unsalted butter, softened - the base of the frosting, along with the cream cheese.
• Cream cheese, softened - use block-style, full-fat cream cheese for the best texture. Let it come fully to room temperature so the frosting is smooth, not lumpy.
• Lemon zest - for another layer of fresh citrus flavor in the frosting itself.
• Powdered sugar - sweetens and thickens the frosting so it's stable enough to pipe.
• Fresh lemon juice - brightens the frosting and balances the sweetness of the powdered sugar.
• Vanilla extract - optional, but I like a small splash to soften the tang.
• Salt - just a pinch, to keep the frosting from tasting flat.
• For Garnish (Optional): Poppy seeds, extra lemon zest, and fresh mint leaves. All these are optional, but they make the cake look finished and give a hint of what's inside before you even slice it.

How to Make the Cake (Step-by-Step)

This is a recipe overview. Scroll down to find the complete instructions + ingredient amounts in the recipe card below.

• PREP: Preheat the oven to 350°F and thoroughly grease a Bundt pan. Whisk together the flour, baking powder, baking soda, salt, and poppy seeds.
• MIX: Rub the sugar and lemon zest together until fragrant. Beat in the butter until light and fluffy, then mix in the oil, eggs, lemon juice, and vanilla.

• COMBINE: Alternate adding the dry ingredients and sour cream, mixing just until combined. Transfer the batter to the prepared pan and smooth the top.

• BAKE: Bake for 45-55 minutes, or until a toothpick comes out clean. Cool in the pan for 20 minutes, then invert onto a wire rack and cool completely.
• FROST: Beat the cream cheese and butter until smooth. Add the powdered sugar, lemon juice, lemon zest, vanilla, and salt, and mix until creamy.

• DECORATE: Pipe the frosting over the cooled cake and garnish with lemon zest, poppy seeds, and fresh mint if desired. Slice and serve.

My Top 5 Tips

1. Grease your Bundt pan thoroughly, getting into every groove, so the cake releases cleanly. I like using a pastry brush with softened butter for full coverage (followed by a light dusting of flour).
2. Use room-temperature ingredients. Cold eggs or sour cream can cause the batter to look curdled and affect the final texture.
3. Don't skip the lemon zest rub. Rubbing zest into the sugar releases the citrus oils, which is what gives this cake such a strong lemon flavor without adding more liquid such as extra lemon juice.
4. Don't overmix once the flour is added. Mix just until you no longer see streaks of flour. Overmixing develops the gluten and makes the cake tough instead of tender.
5. Make sure your cake is completely cool before frosting. If it's even a little warm, the cream cheese frosting will melt and slide right off instead of holding its shape.

FAQ

1. Can I make this cake without poppy seeds? Yes. Simply omit them for a classic lemon Bundt cake. The texture and flavor of the crumb won't change. You'll just lose that signature speckled look and crunch.
2. Do I have to pipe the frosting, or can I just pour it? Piping gives you that dripping, bakery-style finish. Alternatively, you can spread the frosting on with an offset spatula or thin it slightly with an extra splash of lemon juice and pour it over the cake instead.
3. Why did my cake stick to the Bundt pan? This usually comes down to greasing. Make sure you coat every groove and detail of the pan generously. Also, let the cake cool in the pan for the full 20 minutes before inverting. This gives it time to set and release cleanly.

Storage Tips

• Fridge: Keep this cake, covered, in the refrigerator for up to 5 days. Refrigeration is required because of the cream cheese frosting. 
• Freezer: For longer storage, wrap the unfrosted cake tightly and freeze for up to 2 months. Thaw completely before making and piping the frosting.
• Make-Ahead: You can also bake the plain cake a day in advance, store it tightly wrapped at room temperature, and frost it the next day. It actually makes slicing a little easier once the crumb has fully set. 

More Bundt Cake Recipes

• Lemon Blueberry Bundt Cake
• Lemon Raspberry Bundt Cake
• Key Lime Bundt Cake
• Pistachio Bundt Cake

More Lemon Desserts

• Lemon Raspberry Cake
• Lemon Brownies
• Lemon Thumbprint Cookies
• Raspberry Lemon Loaf
• Lemon Blueberry Bread