Lemon Poppyseed Cake with a Tangy Lemon Glaze

This lemon poppyseed cake is the kind of thing you pull out when you need a dessert that feels bright but still like a real treat. It bakes up with a tender crumb, plenty of citrus zip, and just enough poppy seed crunch to keep each bite interesting.

The glaze is the thing that makes it. It soaks into the top of the still-warm cake and sets into a thin, crackly shell that balances the sweetness below.

Why This Lemon Cake Stays So Tender

Sour cream does the heavy lifting here. It adds fat and acidity, which keeps the crumb soft for days without the cake ever turning heavy or greasy.

The crumb is close and even, not fluffy like a layer cake. That makes it sturdy enough to slice thin for a morning coffee but still delicate in the middle.

Ingredients

• 1 1/2 cups all-purpose flour: spooned and leveled, not scooped
• 1/2 teaspoon baking powder
• 1/4 teaspoon baking soda
• 1/2 teaspoon fine sea salt
• 1/2 cup unsalted butter, softened: let it sit out for an hour so it creams smoothly
• 3/4 cup granulated sugar
• 2 large eggs, at room temperature
• 2 tablespoons finely grated lemon zest: from about 2 large lemons
• 2 tablespoons fresh lemon juice
• 1 teaspoon vanilla extract
• 1/2 cup full-fat sour cream: the texture really suffers if you use low-fat
• 2 tablespoons poppy seeds
• 1 cup powdered sugar: for the glaze
• 2 to 3 tablespoons fresh lemon juice: for the glaze, add until it drizzles easily

Variations / Substitutions

• Swap the sour cream: full-fat plain Greek yogurt works well and gives a slightly tangier note.
• Use orange instead: orange zest and juice turn this into an orange poppy seed cake. You can skip the vanilla if you go that route.
• Add almond extract: a 1/4 teaspoon dropped in with the vanilla adds a subtle marzipan layer that plays nicely with the lemon.
• Make it gluten-free: replace the flour with a 1-to-1 gluten-free baking blend that contains xanthan gum. The crumb will be a little more fragile but still moist.

For another citrusy treat, try my Orange Poppy Seed Muffins.

How to Make Lemon Poppyseed Cake

Step 1: Cream the Butter and Sugar

In a large bowl, beat the softened butter and granulated sugar together with an electric mixer on medium speed for about 3 minutes, until the mixture looks pale and fluffy. You want it light enough that the sugar has started to dissolve into the butter.

Scrape down the sides of the bowl once halfway through so no pockets of butter hide at the bottom. The whole thing will feel airy and almost mousse-like, and that is what gives the cake its lift.

Step 2: Beat in the Eggs and Lemon

Add the eggs one at a time, beating for about 30 seconds after each addition until the batter looks smooth again. Then mix in the lemon zest, lemon juice, and vanilla extract.

The batter will look a little curdled after the lemon juice goes in. That is normal and it will smooth right back out once the flour hits it, so do not worry.

Step 3: Fold in the Dry Ingredients

Whisk the flour, baking powder, baking soda, and salt together in a small bowl. Add half of that mixture to the batter and fold it in with a rubber spatula until just a few streaks remain, about 15 seconds. Then stir in the sour cream until it disappears, and finally fold in the remaining flour mixture along with the poppy seeds.

Stop as soon as the flour vanishes. Overworking the batter at this stage builds gluten and can turn the cake tough instead of tender.

Step 4: Bake the Loaf

Preheat your oven to 350°F (175°C). Line a 9×5-inch loaf pan with parchment paper so the ends hang over the sides. Scrape the batter into the pan and spread it evenly, then tap the pan once on the counter to collapse any large air bubbles.

Bake for 50 to 55 minutes, until the top is deeply golden and a toothpick inserted in the center comes out with just a few moist crumbs clinging to it. If the top browns too quickly, tent it loosely with foil after 40 minutes.

Step 5: Glaze and Slice

Let the cake cool in the pan for 10 minutes, then lift it out by the parchment and set it on a wire rack. Whisk the powdered sugar with 2 tablespoons of lemon juice, adding more juice a few drops at a time until the glaze is thick but pourable. Drizzle it all over the top and let it set for a few minutes before slicing.

Serve the slices while the cake is still a little warm, and the glaze will be glossy and just barely set. The crust gets a fine crackle as you cut through it.

Tips for a Moist, Even Bake

• Use room-temperature ingredients: cold eggs or sour cream can cause the butter to seize up and the batter won’t emulsify correctly.
• Measure the flour by weight if you can: 1 1/2 cups is about 190 grams. Scooping directly from the bag packs in too much flour and makes the cake dry.
• Do not skip the parchment sling: the cake is too tender to turn out of the pan without support, and it lets you lift the loaf cleanly.
• Check early for doneness: every oven is different. Start testing with a toothpick at 48 minutes and go from there.

Bake times by pan:

Keeping the Cake Fresh

Store the cake tightly wrapped at room temperature for up to 3 days. The glaze will soften a little as it sits. You can refrigerate it for up to 5 days, but bring slices back to room temperature before serving so the crumb relaxes and the lemon flavor comes through.

Frequently Asked Questions

Why did my cake sink in the middle?

Usually too much air was beaten into the batter or the oven door was opened too early. Cream just until fluffy, not foamy, and do not open the door before 45 minutes.

Can I freeze this cake?

Yes, wrap the unglazed loaf tightly in plastic wrap and then foil, and freeze for up to 2 months. Thaw overnight at room temperature and add the glaze after.

Can I leave out the poppy seeds?

You can, but then it is just a lemon loaf. The seeds add texture, not a strong flavor, so the cake still works without them.

Can I use bottled lemon juice?

Fresh juice gives the bright, sharp tang the cake relies on. Bottled juice tastes flat and will make the glaze flat as well.

Lemon Poppyseed Cake Recipe

Print Recipe Pin Recipe

Prep Time 15 minutes mins

Cook Time 55 minutes mins

Total Time 1 hour hr 10 minutes mins

Servings: 8 servings

Calories: 380

Ingredients Method Notes

Ingredients

  

• 1 1/2 cups all-purpose flour
• 1/2 teaspoon baking powder
• 1/4 teaspoon baking soda
• 1/2 teaspoon fine sea salt
• 1/2 cup unsalted butter, softened
• 3/4 cup granulated sugar
• 2 large eggs, at room temperature
• 2 tablespoons finely grated lemon zest
• 2 tablespoons fresh lemon juice
• 1 teaspoon vanilla extract
• 1/2 cup full-fat sour cream
• 2 tablespoons poppy seeds
• 1 cup powdered sugar
• 2 to 3 tablespoons fresh lemon juice

Method

 

1. Cream the butter and sugar until pale and fluffy, about 3 minutes.
2. Beat in the eggs one at a time, then the lemon zest, lemon juice, and vanilla.
3. Fold in half the dry ingredients, then the sour cream, then the remaining dry ingredients and poppy seeds until just combined.
4. Spread the batter into a parchment-lined 9×5-inch loaf pan and bake at 350°F (175°C) for 50-55 minutes, until a toothpick comes out with moist crumbs.
5. Cool 10 minutes in the pan, then lift out. Whisk powdered sugar with lemon juice and drizzle over the warm cake. Slice and serve.

Notes

Let the cake cool until it is just warm before glazing, so the glaze sets but still seeps into the top a little. For the cleanest slices, wait until it is fully cooled and use a serrated knife.