If you love bright lemon flavor and soft, buttery cake, this Lemon Poppy Seed Coffee Cake is going to become a favorite.
It’s tender, moist, topped with a buttery crumb topping, and finished with a sweet lemon glaze.
It looks bakery-worthy, but it’s easy enough to make at home.
Why I Love This Recipe
I first made this cake on a rainy weekend when I wanted something that felt comforting without being too heavy. The fresh lemon completely changed the classic coffee cake into something bright and fresh. The smell filled the kitchen, and before it even cooled, everyone was asking for another slice. Since then, it’s become one of those recipes I always come back to because it never disappoints.
Things I love about this recipe:
- Bright, fresh lemon flavor in every bite.
- Soft and buttery cake with a tender crumb.
- Crunchy cinnamon crumb topping.
- Sweet lemon glaze finishes everything perfectly.
- Easy ingredients you probably already have.
- Great for breakfast, brunch, dessert, or afternoon coffee.
Servings and Time
- Servings: 12 slices
- Prep Time: 20 minutes
- Bake Time: 40–45 minutes
- Total Time: About 1 hour 5 minutes
What You’ll Need
For the Cake
- 2 cups all-purpose flour
- 2 teaspoons baking powder
- ½ teaspoon baking soda
- ½ teaspoon salt
- 2 tablespoons poppy seeds
- ½ cup unsalted butter, softened
- 1 cup granulated sugar
- 2 large eggs
- 1 tablespoon fresh lemon zest
- ¼ cup fresh lemon juice
- 1 teaspoon vanilla extract
- ¾ cup sour cream
For the Crumb Topping
- ¾ cup all-purpose flour
- ⅓ cup brown sugar
- ¼ cup granulated sugar
- ½ teaspoon ground cinnamon
- ¼ teaspoon salt
- 6 tablespoons unsalted butter, melted
Lemon Glaze
- 1 cup powdered sugar
- 2 tablespoons fresh lemon juice
- 1 teaspoon lemon zest
Why This Recipe Works (Quick Science)
The sour cream adds moisture because its fat helps keep the cake soft while the acidity works with the baking soda for extra lift. Baking powder provides even rising, while the butter creates a tender crumb. Poppy seeds add a light crunch without making the cake heavy. Fresh lemon juice and zest bring bright flavor because the zest contains natural oils that hold the strongest lemon taste.
Recipe
Ingredients
Use all ingredients listed above.
Instructions
Step 1: Prepare the Oven and Pan
Preheat the oven to 350°F. Grease a 9-inch round cake pan and lightly dust it with flour.
Step 2: Mix the Dry Ingredients
In a large bowl, whisk together 2 cups all-purpose flour, 2 teaspoons baking powder, ½ teaspoon baking soda, ½ teaspoon salt, and 2 tablespoons poppy seeds until evenly mixed.
Step 3: Cream the Butter and Sugar
Beat ½ cup softened unsalted butter and 1 cup granulated sugar for about 3 minutes until very light and fluffy. Beat in 2 large eggs one at a time. Mix in 1 tablespoon lemon zest, ¼ cup fresh lemon juice, and 1 teaspoon vanilla extract.
Step 4: Finish the Batter
Add half of the flour mixture to the butter mixture. Mix gently. Add ¾ cup sour cream. Mix again. Add the remaining flour mixture and stir just until no dry flour remains.
Step 5: Make the Crumb Topping
Mix together ¾ cup all-purpose flour, ⅓ cup brown sugar, ¼ cup granulated sugar, ½ teaspoon cinnamon, ¼ teaspoon salt, and 6 tablespoons melted butter until large buttery crumbs form.
Step 6: Assemble
Spread the prepared batter evenly into the greased 9-inch cake pan. Sprinkle all of the crumb topping evenly across the batter.
Step 7: Bake
Bake for 40 to 45 minutes until golden brown and a toothpick inserted into the center comes out clean.
Step 8: Make the Glaze
Whisk together 1 cup powdered sugar, 2 tablespoons fresh lemon juice, and 1 teaspoon lemon zest until smooth.
Step 9: Finish and Serve
Cool the cake for 20 minutes. Drizzle the lemon glaze over the cooled cake before slicing and serving.
Pro Tips
- Use fresh lemons instead of bottled juice for the brightest flavor.
- Don’t overmix the batter once the flour is added or the cake can become dense.
- Let the cake cool before adding the glaze so it stays on top instead of soaking in.
- Measure flour by spooning it into the measuring cup instead of scooping directly.
- Toasted coffee or hot tea pairs especially well with this cake.
Tools You’ll Need
- 9-inch round cake pan
- Large mixing bowl
- Medium mixing bowl
- Small bowl
- Hand mixer or stand mixer
- Whisk
- Rubber spatula
- Measuring cups
- Measuring spoons
- Cooling rack
Substitutions and Variations
- Greek yogurt can replace sour cream.
- Add fresh blueberries for extra fruit flavor.
- Use orange zest instead of lemon for a citrus twist.
- Add sliced almonds to the crumb topping for crunch.
- Use gluten-free 1-to-1 flour if needed.
Make Ahead Tips
- Bake the cake one day ahead and glaze before serving.
- Freeze the unglazed cake for up to 2 months.
- Mix the crumb topping one day early and refrigerate.
Common Mistakes
- Overmixing the batter, which makes the cake tough.
- Using cold butter instead of softened butter.
- Adding glaze before the cake cools.
- Baking too long, which dries out the cake.
- Forgetting to zest the lemon before juicing it.
What to Serve With
- Hot coffee
- Earl Grey tea
- Fresh berries
- Vanilla Greek yogurt
- Scrambled eggs for brunch
- Fresh fruit salad
Leftovers and Storage
Store covered at room temperature for up to 2 days or refrigerate for up to 5 days. Warm slices in the microwave for about 10 seconds before serving. Freeze individual slices for up to 2 months.
Nutrition (Approximate Per Serving)
- Calories: 365
- Protein: 5g
- Carbohydrates: 49g
- Fat: 17g
- Saturated Fat: 10g
- Fiber: 1g
- Sugar: 29g
- Sodium: 220mg
FAQ
Can I use bottled lemon juice?
Fresh lemon juice gives the best flavor, but bottled will work if needed.
Can I freeze this cake?
Yes. Wrap it tightly before freezing. Glaze after thawing for the freshest taste.
Why is my cake dense?
Most often, the batter was overmixed or too much flour was added.
Can I make this without poppy seeds?
Yes. The cake will still be delicious with the same lemon flavor.
Can I use a square baking pan?
Yes. An 8-inch square pan works well. Baking time may need a few extra minutes.
Final Thoughts
This Lemon Poppy Seed Coffee Cake is one of those recipes that feels special without being difficult. The buttery crumb topping, bright lemon flavor, and soft, tender cake come together in every bite. Whether you’re serving it for breakfast, brunch, dessert, or with an afternoon cup of coffee, it’s a recipe that’s easy to make and always impressive. If you give it a try, I’d love to hear how it turned out and what you served with it. Happy baking!
