Lemon Sheet Cake with Tangy Lemon Glaze
This lemon sheet cake is the dessert I turn to when I need something bright and buttery with minimal fuss. A soft, tender crumb gets a generous pour of tangy lemon glaze, soaking into the warm cake for a top that crackles when you bite it.
It’s a one-bowl recipe that uses everyday ingredients, making it perfect for last-minute gatherings or a quiet Tuesday night treat.
Why This Sheet Cake Stays in the Rotation
The first time I made this, I was surprised how much lemon flavor can be packed into a simple butter cake. The zest gives it a sunny perfume, and the buttermilk keeps the crumb tender for days.
The glaze is the best part. It’s barely sweetened, mostly lemon juice and powdered sugar, and it sets into a thin, crisp layer that contrasts the soft cake. Every bite starts with a little snap.
Ingredients
- 2 cups (250g) all-purpose flour: spoon and level to avoid a dense cake
- 1 1/2 teaspoons baking powder
- 1/2 teaspoon baking soda
- 1/2 teaspoon salt
- 1/2 cup (115g) unsalted butter, softened: let it sit out for 30 minutes
- 1 1/2 cups (300g) granulated sugar
- 3 large eggs, at room temperature
- 2 tablespoons lemon zest: from about 2 large lemons
- 1/4 cup (60ml) fresh lemon juice: bottled works in a pinch, see note below
- 1 teaspoon vanilla extract
- 1 cup (240ml) buttermilk, well-shaken: or use the quick substitute in the notes
- For the glaze:
- 2 cups (240g) powdered sugar
- 3 to 4 tablespoons fresh lemon juice
- 1 teaspoon lemon zest
Variations / Substitutions
- Orange sheet cake: swap the lemon zest and juice for orange. The flavor will be sweeter and more mellow.
- Dairy-free: use a good vegan butter and mix 1 cup unsweetened non-dairy milk with 1 tablespoon lemon juice for the buttermilk.
- Poppy seed lemon cake: stir 2 tablespoons poppy seeds into the dry ingredients for a bit of crunch.
- Double the glaze: if you love a thick, frosting-like top, use 3 cups powdered sugar and about 5 tablespoons lemon juice.
If you lean toward all things lemon, our Lemon Poppy Seed Muffins are a good next bake.
How to Make the Lemon Sheet Cake
Step 1: Whisk the Dry Ingredients
Preheat your oven to 350°F (175°C) and butter a 9×13-inch baking pan. In a medium bowl, whisk together the 2 cups flour, 1 1/2 teaspoons baking powder, 1/2 teaspoon baking soda, and 1/2 teaspoon salt.
Keep whisking until the powders are evenly distributed and no little pockets of baking soda remain. This takes about 15 seconds and ensures the cake rises evenly.
Step 2: Cream the Butter and Sugar
In a large bowl, use an electric mixer (or a whisk and some elbow grease) to beat the 1/2 cup softened butter and the 1 1/2 cups granulated sugar. Beat on medium speed until the mixture is light and fluffy, about 3 full minutes, scraping down the sides once or twice.
The mixture should look pale and feel sandy but cohesive. This step traps air that gives the cake a tender, soft crumb.
Step 3: Add the Wet and Dry Alternately
Beat in the 3 eggs one at a time, making sure each is fully blended before adding the next. Mix in the 2 tablespoons lemon zest, 1/4 cup lemon juice, and 1 teaspoon vanilla. With the mixer on low, add the flour mixture in three additions, alternating with the 1 cup buttermilk, starting and ending with the flour. Stir just until no dry streaks show, about 30 seconds.
The batter will be thick, smooth, and smell intensely of lemon. Overmixing here makes the cake tough, so stop as soon as everything comes together.
Step 4: Bake and Cool
Scrape the batter into the prepared pan and smooth the top with a spatula. Bake for 25 to 30 minutes, until a toothpick poked into the center comes out clean or with a few moist crumbs clinging to it.
Let the cake cool in the pan on a wire rack for 10 minutes. You can lift it out with the parchment to cool completely before glazing, or leave it in the pan and glaze while it’s still slightly warm. The glaze will seep into a warm cake more and sit on top of a cool one. Both ways work.
Step 5: Drizzle the Lemon Glaze
In a medium bowl, whisk together the 2 cups powdered sugar, 3 tablespoons lemon juice, and 1 teaspoon lemon zest. Add more lemon juice a few drops at a time until the glaze is pourable but thick enough to coat a spoon without running right off. Drizzle it generously over the cake, tilting the pan so it reaches the edges.
Let the glaze set for about 15 minutes before slicing. The top will feel crackly and slightly firm, with the soft butter cake underneath. Slice into squares and serve at room temperature.
A Few Notes Before You Start
- Bring ingredients to room temperature: Softened butter and room-temperature eggs cream more evenly, giving the cake a finer crumb and even rise.
- Rub the zest into the sugar: Before creaming, massage the lemon zest into the granulated sugar with your fingers for 30 seconds. This releases the citrus oils and makes the lemon flavor pop.
- Line the pan with parchment: Leave a couple inches of overhang on the long sides so you can lift the whole cake out for easy slicing and glazing.
- Buttermilk substitute: If you don’t have buttermilk, stir 1 tablespoon lemon juice into 1 cup whole milk and let it sit for 5 minutes until it slightly thickens.
Bake times change a bit depending on the pan you grab. Here’s a quick guide.
| Pan Size | Bake Time | Notes |
|---|---|---|
| 9×13-inch | 25 to 30 minutes | Standard pan, toothpick clean |
| 8×8-inch | 30 to 35 minutes | Thicker cake, check the center |
| Two 8-inch rounds | 20 to 25 minutes | Nice for a layer cake |
Keeping the Cake Fresh
- Refrigerate: Store leftover cake in an airtight container in the fridge for up to 4 days. The lemon glaze stays firm and the cake remains moist.
- Serve cold or at room temperature: It’s delicious straight from the fridge with a crisp glaze, or let the slices sit out for 20 minutes to soften the butter.
What to Serve With This Lemon Sheet Cake
This cake is bright and tangy, so it pairs beautifully with a bowl of fresh berries. Raspberries and blueberries cut the sweetness and add a juicy contrast. A scoop of vanilla ice cream turns it into a casual plated dessert, and a dollop of lightly sweetened whipped cream works wonders for an afternoon tea.
Frequently Asked Questions
Can I use bottled lemon juice for the glaze?
Fresh juice tastes brighter, but bottled works in a pinch. The glaze may be less punchy, so add an extra pinch of zest to compensate.
Why did my cake sink in the middle?
The oven temperature was likely too low, or the door was opened too early. Use an oven thermometer and avoid peeking for the first 20 minutes.
Can I freeze this cake?
Yes, wrap the unglazed cake tightly in plastic wrap and freeze for up to 1 month. Thaw at room temperature, then pour on the glaze.
Can I make this cake gluten-free?
Substitute a 1-to-1 gluten-free flour blend for the all-purpose flour. The texture will be slightly denser but still moist and satisfying.
Lemon Sheet Cake Recipe
Ingredients
Method
- Preheat oven to 350°F (175°C). Butter and line a 9×13-inch baking pan. Whisk flour, baking powder, baking soda, and salt.
- Beat butter and sugar until light and fluffy, about 3 minutes.
- Mix in eggs one at a time, then zest, lemon juice, and vanilla. Alternate adding flour mixture and buttermilk, mixing just until combined.
- Pour batter into pan, smooth top, and bake 25 to 30 minutes until a toothpick comes out clean. Cool in pan 10 minutes.
- Whisk powdered sugar, 3 tablespoons lemon juice, and zest. Add more juice for a pourable consistency and drizzle over cake. Let set 15 minutes before slicing.
