When I set out to make the lemon blueberry bundt cake my neighbors actually requested, I wanted a version that stayed moist for days and didn’t turn the cake purple every time a berry burst. The lemon blueberry bundt cake in this post puts the focus on a tender crumb from sour cream, a modest amount of lemon zest for bright citrus, and a simple glaze that doesn’t overwhelm the cake. Keep reading if you want clear timing, fail-safe cues, and shortcuts that still taste homemade.
Why this lemon blueberry bundt cake works
The key technique is balancing moisture and structure: sour cream keeps the crumb tender while a modest amount of all-purpose flour and a single egg extra give enough support so the cake slices cleanly. I tested variations with oil and butter and settled on mostly butter for flavor with a touch of oil to keep the cake soft after a day or two. I also toss the blueberries with a spoonful of flour to reduce sinking and use room-temperature ingredients to create a smooth batter that traps air evenly. What changed during testing was the glaze amount — too thin and it ran off; too thick and it hid the lemon. The final glaze is slightly pourable so it glazes the crevices without puddling.
Key takeaways
- Sour cream in the batter keeps the cake moist and tender.
- Toss blueberries with flour to keep them suspended and minimize bleeding.
- A pourable lemon glaze adds brightness without making the cake soggy.
Ingredients you’ll need and what to substitute
This recipe uses easy pantry staples and fresh lemons. I use unsalted butter because it gives a clean, buttery flavor and lets you control salt level; if you only have salted butter, reduce added salt by 1/4 teaspoon. Full-fat sour cream is my preferred choice for moisture and tang; plain Greek yogurt (5% or whole-milk style) will work as a one-to-one substitute but the crumb will be slightly firmer. Fresh blueberries are best — frozen berries can be used but toss them with a little more flour and don’t thaw to avoid too much liquid. For a lighter crumb, you can replace up to 1/4 cup of the all-purpose flour with cake flour; the cake will be more delicate and will need gentle handling.
Equipment
You don’t need anything fancy: a 10-cup Bundt pan is ideal for the volume here; a standard 9- or 10-inch tube-style pan will work but fill it no more than two-thirds full. A hand mixer or stand mixer speeds up creaming the butter and sugar, but you can use a sturdy whisk and some elbow grease. I also recommend a rubber spatula for folding in blueberries and a fine-mesh sieve for zesting sugar on top if you like.
How to make lemon blueberry bundt cake
Make the batter
Preheat the oven to 350°F and position a rack in the center. Grease a 10-cup Bundt pan thoroughly with butter or nonstick spray and lightly dust with flour, tapping out the excess. In a medium bowl, whisk together 2 cups all-purpose flour, 1 teaspoon baking powder, 1/2 teaspoon baking soda, and 1/2 teaspoon salt. In a large bowl, beat 1 cup (2 sticks) unsalted butter and 1 1/2 cups granulated sugar until light and slightly fluffy, about 3 to 4 minutes with a hand mixer on medium speed. Beat in 3 large eggs one at a time, scraping the bowl between additions, then stir in the zest of 2 lemons and 2 teaspoons vanilla extract.
Combine wet and dry
Reduce the mixer speed to low and add the flour mixture in three additions alternating with 1 cup sour cream, beginning and ending with the flour mixture (flour, sour cream, flour, sour cream, flour). Mix until just combined; overmixing will toughen the cake. In a small bowl toss 2 cups fresh blueberries with 1 tablespoon flour and 1 teaspoon sugar to coat — this prevents sinking and reduces pigment bleeding. Fold the blueberries gently into the batter with a spatula.
Bake and cool
Scrape the batter into the prepared Bundt pan and smooth the top. Bake at 350°F for 45 to 55 minutes, or until a thin skewer inserted near the center comes out with a few moist crumbs but not wet batter. The exact time depends on pan thickness and oven variability; start checking at 40 minutes. Cool the cake in the pan on a wire rack for 15 minutes — this short rest helps the cake set and makes it easier to unmold — then invert the pan to release the cake and cool completely on the rack for another 60 minutes before glazing. Cooling fully avoids the glaze melting into the crumb.
Make the glaze
Whisk together 1 1/2 cups powdered sugar with 2 tablespoons freshly squeezed lemon juice and 1 tablespoon milk or cream; add an extra tablespoon of lemon juice if you prefer a thinner glaze. The glaze should be pourable but not watery. Spoon the glaze over the top, letting it run into the Bundt grooves. For a brighter look, zest a little lemon over the glaze and scatter a few fresh blueberries on top once the glaze sets slightly.
Things I learned the hard way
- Do not skip greasing and flouring the pan: the first time I used only spray and the cake stuck in one spot; a full butter rub plus flour saved later attempts.
- Room-temperature eggs and sour cream create a smoother batter; cold ingredients make the batter lumpy and extend bake time.
- If blueberries bleed, it’s usually because they were wet or overmixed; tossing them with flour and folding gently fixed the color bleed.
- Too-thin glaze soaks in — if your glaze is thin, either thicken with more powdered sugar or wait until the cake is fully cool.
- Underbaking leaves the center gummy; rely on the skewer test and give the cake an extra 5 minutes if the toothpick comes out very wet.
- My first batch was dry because I swapped all the butter for oil; a blend of butter with a little oil or all butter plus sour cream keeps it moist and flavorful.
Variations to try
- Lemon almond: Replace 1/2 cup of flour with 1/2 cup almond flour and add 1/2 teaspoon almond extract; bake the same time but watch for a quicker browning.
- Blueberry streusel: Reserve 1/3 cup of the blueberries and sprinkle a simple streusel (1/3 cup brown sugar, 3 tablespoons flour, 2 tablespoons cold butter) on top of batter before baking; add 5 extra minutes to bake time if needed and check doneness.
- Mixed berry: Substitute equal parts raspberries and blueberries; use slightly larger flour coating and fold carefully as raspberries are fragile.
- Gluten-reduced: Use a 1:1 gluten-free flour blend and include 1/4 teaspoon xanthan gum if your blend lacks it; baking time may vary by 5–10 minutes.
Storage, freezing, and reheating
Store the glazed cake at room temperature, lightly covered, for up to 2 days. For longer storage, wrap the unglazed whole cake tightly in plastic wrap and aluminum foil and freeze for up to 3 months. To serve, thaw overnight in the refrigerator, bring to room temperature for 30 to 60 minutes, and make the glaze fresh before serving. Sliced cake keeps well in an airtight container in the refrigerator for 4 days; reheat a slice for 10 to 15 seconds in the microwave to return some softness — avoid overheating which makes it tough.
What to serve with lemon blueberry bundt cake
This cake pairs well with lightly sweetened whipped cream, a scoop of vanilla ice cream, or a simple bowl of fresh berries for brunch. For beverages, hot coffee, Earl Grey tea, or a bright citrusy iced tea balance the cake’s sweetness. If serving for a casual brunch, offer a small fruit salad and a savory quiche to make a full spread.
Lemon Blueberry Bundt Cake with Lemon Glaze
Ingredients
Equipment
Method
- Preheat the oven to 350°F and grease a 10-cup Bundt pan thoroughly with butter or nonstick spray; dust lightly with flour and tap out excess.
- In a medium bowl whisk together 2 cups all-purpose flour, 1 teaspoon baking powder, 1/2 teaspoon baking soda, and 1/2 teaspoon salt.
- In a large bowl, beat 1 cup unsalted butter and 1 1/2 cups granulated sugar until light and slightly fluffy, about 3 to 4 minutes; beat in 3 eggs one at a time, then stir in lemon zest and 2 teaspoons vanilla.
- With the mixer on low, add the dry ingredients in three additions alternating with 1 cup sour cream, beginning and ending with the flour; mix until just combined.
- Toss 2 cups blueberries with 1 tablespoon flour and 1 teaspoon sugar, then fold gently into the batter with a spatula.
- Scrape batter into the prepared pan and bake at 350°F for 45 to 55 minutes, until a skewer inserted near center comes out with a few moist crumbs; start checking at 40 minutes.
- Cool cake in pan on a wire rack for 15 minutes, invert to release, then cool completely for about 60 minutes before glazing.
- Whisk 1 1/2 cups powdered sugar with 2 tablespoons lemon juice and 1 tablespoon milk until pourable; adjust with more powdered sugar or lemon juice to reach desired consistency, then drizzle over cooled cake and garnish if desired.
Notes
Frequently asked questions
Can I use frozen blueberries? Yes, but keep them frozen and toss with an extra teaspoon of flour; do not thaw or the extra moisture will affect the bake and increase bleeding. Fold frozen berries into batter and expect a slight increase in baking time.
How do I keep blueberries from sinking? Toss them with 1 tablespoon of flour and a teaspoon of sugar before folding gently into the batter and avoid overmixing; this helps them stay suspended during baking.
Can I make this as a loaf or layer cake? Yes — for a 9×5 loaf, bake at 350°F for 50 to 65 minutes; for two 8- or 9-inch round pans, divide batter and bake 30 to 40 minutes. Check doneness with a skewer.
Why is my cake dry? Dryness usually comes from overbaking or replacing sour cream with a low-fat substitute. Check the cake at the earlier end of the time window and use full-fat sour cream or a half-and-half swap for better moisture.
How long does the cake keep? At room temperature in a covered container, 2 days; refrigerated for up to 4 days; frozen (unfrosted) up to 3 months.
Closing
The lemon blueberry bundt cake is a bright, homey dessert that holds up well across a weekend of breakfasts or casual gatherings — the sour cream keeps the crumb soft and the glaze adds that citrus finish I keep coming back to. I find the little tricks here (flouring the berries and a pourable glaze) make the difference between a nice cake and one you reach for repeatedly.
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