Whenever I see a slice of lemon loaf on the table, I want it. As an avid rosemary lover, I thought a lemon rosemary loaf cake sounded AMAZING.

Spoiler: I was right.

I recently polled followers to see their preferred cake form; surprisingly, the majority voted for a loaf (the options also included tiered, cupcake, and sheet). Personally, a cupcake would be my last pick, since lbh they’re often dry.

I recently tried a grapefruit loaf from a cookbook I got while traveling in Scotland and remembered how much I love not only a loaf but a citrus-packed one. Since we’re in the height of citrus season (or at least we are while I’m writing this recipe), I figured it was time to bring this lemon rosemary loaf cake to life.

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sweet loaf flavored with lemon and rosemary

WHAT IS LEMON ROSEMARY LOAF CAKE?

Basically, take your average lemon loaf and make it better.

The loaf cake on its own is packed with lemon and rosemary flavors. Then, once baked and pricked all over with a toothpick, you’ll brush it all over with a rosemary and lemon simple syrup.

Pour over a quick two-ingredient lemon glaze to finish, and now you have a sweet loaf that’s a little bit sharp, a little bit savory, and a whole lot delicious.

Do I need to use fresh lemons for this recipe? Yes! Both the lemon zest and juice are key to the lemon flavor in this loaf cake.

INGREDIENTS

Granulated Sugar: Sweetens the loaf and dissolves into the lemon-rosemary syrup brushed over the warm cake.
Unsalted Butter: Adds rich flavor and moisture for a soft, tender crumb.
Eggs: Provide structure, moisture, and help the loaf rise by trapping air during mixing.
Lemons: Zest infuses the batter with bright citrus flavor, while the juice powers the syrup and glaze.
Vanilla Extract: Softens sharp citrus notes and adds warmth.
Sour Cream: Adds fat for moisture and enhances the loaf’s tangy lemon flavor.
All-Purpose Flour: Gives the loaf structure so it bakes up sturdy yet soft.
Baking Powder: Helps the loaf rise evenly with a nice lift.
Salt: Balances sweetness and boosts every flavor.
Rosemary: Adds an aromatic, savory contrast that pairs beautifully with lemon.
Powdered Sugar: Creates a smooth, sweet glaze to finish the loaf.

How do I bake with rosemary? Fresh is best, but if you only have dried, that’ll work in a pinch. The key is to finely chop your rosemary to avoid any spikey bits in your loaf – a sharp knife or mini food processor works great.

HOW TO MAKE LEMON ROSEMARY LOAF CAKE

Baking the Loaf

Grease and line a 9×5-inch loaf pan with parchment (using paper clips to hold the sides if needed, but removing them before baking) and preheat your oven to 325°F so it’s ready when your batter is done. Cream the sugar and softened butter with a stand or hand mixer until light and fluffy, then beat in the eggs one at a time before mixing in the lemon zest, lemon juice, and vanilla just until combined.

In a separate bowl, sift together the flour and baking powder, then whisk in the salt and finely chopped rosemary. Add the dry ingredients to the wet in thirds, alternating with the sour cream, mixing only until combined to avoid overworking the batter.

Pour the batter into the prepared pan, smooth the top, and bake for 50–55 minutes, checking only after the 45-minute mark so the loaf doesn’t collapse. The loaf is done when a toothpick inserted into the center comes out clean rather than coated in batter.

Making the Lemon-Rosemary Syrup

While the loaf bakes, heat the lemon juice and sugar in a small pot over medium heat, whisking until the sugar dissolves in 2–3 minutes. Add the rosemary, bring the mixture to a gentle simmer for 5 minutes, then remove from the heat and let it cool so the flavor fully infuses before straining out the rosemary.

Finishing the Cake

Let the loaf cool in the pan for 10 minutes, then transfer it to a wire rack with the parchment underneath for easy cleanup and poke holes across the top and sides with a toothpick. Brush all of the lemon-rosemary syrup over the loaf until absorbed, then allow it to cool completely.

Whisk together the lemon juice and powdered sugar until smooth, then pour the glaze down the center of the cooled cake and gently spread it so it drips attractively over the sides. Let the glaze set for at least 15 minutes before slicing and serving.

un-glazed lemon rosemary loaf with toothpick holes

3 reasons you’ll love this lemon rosemary loaf cake

Rosemary lends a unique herby depth to this classic loaf that will have people coming back for more
Sharp and sweet, perfect for citrus season or when you’re in the mood for a lemony bite
A loaf for the masses! One loaf makes 10 slices, great for sharing with guests or freezing for later

TIPS & VARIATIONS

Fresh will give you the best flavor but you can use dried rosemary for this recipe if that’s what you have. Substitute the fresh for 2 tablespoons of dried rosemary.
Regardless of fresh or dried, your rosemary needs to be finely chopped. You don’t want it ground, just finely chopped! Note that you only need to do this for the rosemary inside the cake, not the rosemary in the syrup (which you will strain out).
Do not open your oven until at least the 45-minute mark, if you want to check on your loaf. Open it too early and you’ll risk collapsing your loaf!
The lemon glaze should be thick but pourable. If it’s too thin it’ll run right off your loaf, so be careful if you add any extra lemon juice.
Once glazed, allow your cake time for the frosting to fully set. This will make it easier to slice and serve.

MAKING AHEAD & STORING

Store the loaf airtight at room temperature, where it will keep for 3-4 days.

It also freezes incredibly well! Slice and wrap each in parchment paper before placing in an airtight container. The loaf will last for up to three months when stored in the freezer.

MORE LOAF PAN RECIPES

Simple Sweet Potato Bread
Blueberry Muffin Bread
Easy Key Lime Coconut Icebox Cake
Cinnamon-Sugar Sweet Potato Pull-Apart Bread
Double Chocolate Zucchini Bread

EQUIPMENT YOU’LL NEED

Prep Time 20

Cook Time 1 5

Total Time 2 10

Servings 10 slices

Course Breakfast, Dessert

Cuisine American

A delicious twist on a classic favorite, this lemon and rosemary loaf cake is packed full of that sharp sweetness we all know and love with a delicious herby twist from the rosemary that will have people coming back for more.

Equipment

Mixing Bowls
Mixer
Spatula
Zester
Measuring Cups
Measuring Spoons
9”x5” loaf pan
Parchment Paper
Small pot
Whisk
Fine Mesh Sieve
Pastry Brush
Wire Cooling Rack

Ingredients

CAKE

1 ¼ cups sugar
½ cup unsalted butter softened
3 eggs room temperature
3 medium lemons zested
¼ cup lemon juice
1 tsp vanilla extract
¼ cup sour cream
2 cups flour sifted
1 ½ tsp baking powder sifted
¼ teaspoon salt
¼ cup fresh rosemary finely chopped (see notes if using dried rosemary)

SYRUP

¼ cup lemon juice
¼ cup sugar
2, 2- inch sprigs fresh rosemary or ½ tbsp dried

GLAZE

1 ¼ cup powdered sugar sifted
2 tbsp lemon juice

Instructions

Preheat oven to 325°F. Grease a 9”x5” loaf pan and line with parchment paper
In a large bowl, use a mixer to beat together your sugar and softened butter until lightened in color and fluffy, about 3 minutes
Add in your eggs, beating in one at a time to make sure fully incorporated before adding in your zest, lemon juice, and vanilla extract. Mix until combined
In a separate bowl, sift in your flour and baking powder before whisking in your salt and finely chopped rosemary
Add a third of your dry mixture into your wet ingredients, and mix on low speed until just combined. Then add half of your sour cream and mix in. Repeat with the next third of your dry mixture, then the remainder of your sour cream, and then the last of your dry. Mix until just combined, do not over-mix!
Pour into your prepared loaf pan and spread out evenly
Bake for 50-55 minutes until a toothpick inserted comes out clean. Do not open the oven earlier than the 45-minute mark!
While your cake is baking, prep your simple syrup. In a small pot, combine your lemon juice and sugar. Whisk over medium heat until the sugar dissolves. Once the sugar is dissolved, add in your fresh rosemary sprigs and bring the mixture to a simmer. Reduce the heat and simmer for 5 minutes. Remove the pot from the heat and allow the mixture to cool to room temperature before straining out your rosemary sprigs.
Allow the cake to cool in the loaf pan for 10 minutes before placing it on a wire rack. Use a toothpick to carefully poke holes all along the top and sides of your loaf. We’re not trying to massacre the loaf here but make little delicious tunnels for our syrup
Use a pastry brush to brush all of the syrup into the loaf along the top and sides, do not leave any syrup in the pot! Allow the loaf to cool completely
Once your loaf is cool, whisk your lemon juice and powdered sugar in a bowl until your glaze is smooth. It should be thick but pourable
Pour the glaze over your cooled cake, allowing it to drip down the sides
Let set for at least 15 minutes then slice and enjoy!

Video

https://www.instagram.com/p/DFk_uzXPA1v/

Notes

*If you don’t have fresh rosemary, you can use dried for this recipe. Substitute 2 tablespoons dried, but we still want it finer than how it comes in the bottle. Place your dried rosemary in a mini food processor and pulse 4-5 times for 10 seconds each until chopped up. You don’t want it ground, but you want them about ⅓ – ¼ of the size they were in the jar.

*Do not open your oven until at least the 45-minute mark. Open it too early, and you risk collapsing your loaf!

*When mixing your lemon glaze, you might think it’s a little thick. It should be pourable (though questionably so) but not runny. You don’t want it to run right off of your loaf! You’re welcome to add a little more lemon juice if desired, but do so sparingly.

*Once glazed, allow your cake time for the frosting to fully set. If you’re ok with it being a little runny, you do you, but it’s easier to slice and serve when the frosting holds on top of the loaf.