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Lemon Buttermilk Cake is topped with a delicious lemony glaze. It is refreshing with the perfect amount of sweetness!

This Lemon Buttermilk Cake has the perfect amount of lemon flavor. For more lemon cakes, try Lemon Cheesecake, Lemon Pound Cake, or Lemon Sheet Cake.

Lemon buttermilk cake garnished with a slice of lemon on a white plate.
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Summer flavors

I love all of the flavors of summertime! With summer on the way, all I want is lemon – like our favorite Easy Lemon Bars. This lemon easy lemon cake recipe is just so bright and refreshing.

I love that it has the perfect amount of lemony flavor. It’s not too tart but has just enough tartness to give you a delicious lemon taste.

Baking this Lemon Buttermilk Cake in a larger pan gives the perfect-sized squares, and trust me, you’ll want a healthy helping! It is super light and lemony and was gone in no time.

It’s definitely a great summer treat to make and will be perfect for your next family gathering.

Lemon buttermilk Cake batter mixed in a glass mixing bowl.

How to Make lemon buttermilk cake

DRY INGREDIENTS. In a medium bowl, combine flour, baking powder, baking soda, and salt. Set aside.

WET INGREDIENTS. In a liquid measuring cup, combine buttermilk, lemon juice, and vanilla. Set aside.

COMBINE. With a stand mixer, beat sugar and lemon zest on medium speed until smooth. Transfer ¼ cup sugar mixture to a small bowl. Cover and set aside.

Add butter to the sugar remaining in the mixer and beat until light and fluffy. Beat in eggs and egg yolk one at a time. On low speed, add the flour mixture in 3 additions, alternating with 2 additions of the buttermilk mixture. Beat until smooth.

BAKE. Pour the cake batter into a greased and floured 10×15 pan and smooth the top with a spatula. Bake at 325°F, for 25-35 minutes, or until golden brown. Transfer to a wire rack and let cool for 10 minutes.

GLAZE. For the glaze, whisk powdered sugar, lemon juice, and milk until smooth. Gently spread over warm cake and sprinkle reserved sugar mixture evenly over the top. Serve warm or cool for at least 2 hours.

Make cupcakes

Preheat the oven to 350°F. Fill the cupcake liners ⅔ of the way with batter.

Bake for 17-20 minutes or until a toothpick inserted into the center comes out clean. 

Recipe Tips

Pan size. If you don’t have a 10×15 pan, cook the lemon cake in a 9×13 pan for 5-10 minutes longer, just make sure to keep it under your watch and check it with toothpicks.

Grease and flour the pan. To keep the cake from sticking to the pan and make serving easier properly prepare the pan.

  • Grease every inch with cooking spray, shortening, or butter.
  • Scoop about ¼ cup of flour into the pan.
  • Tip the pan in all directions allowing the flour to coat the bottom and sides. Discard excess flour. 

Room temperature ingredients. The egg yolks need to be at room temperature because they whip up better in mixes giving them more volume.

Ingredient Tips

Flour. Make your own cake flour using all-purpose flour and cornstarch. Add 2 tablespoons of cornstarch to a 1-cup measuring cup.

Fill it the rest of the way up with all-purpose flour. Then place the ingredients in a small bowl to whisk them together thoroughly.

Zest is made by grating the peel of a piece of citrus, in this case, a lemon. You can buy a citrus zester, but the small side of a cheese grater also works.

Alternative toppings. A light lemon glaze tops this cake off perfectly. Add a dusting of powdered sugar on top or add fresh berries. Another idea is to top it with lemon syrup or a thicker Lemon Cream Cheese Frosting.  

Lemon buttermilk cake squares cut in a pan.

Storing Info

STORE. Cover Buttermilk Cake and keep it at room temperature for 5-7 days. Past that the cake would dry out if there is not enough glaze, or get too moist and fall apart if there is too much glaze.

FREEZE. Wrap Buttermilk Cake Recipe in plastic wrap and again with foil. Store for up to 3 months in the freezer. Thaw before eating.

Lemon buttermilk cake garnished with a lemon displayed on a white plate.

Recipe FAQ

What does buttermilk add to this recipe?

Buttermilk adds both moisture and a tangy flavor to cakes. The acidity in the buttercream also reacts with the leavening agent to help it rise.

What if I don’t have buttermilk?

You can make your own buttermilk using milk and vinegar. Another alternative is to combine ¾ cup of sour cream with ¼ cup of milk. Whisk until smooth and measure out ¾ cup to use in this recipe.

For More easy Cakes, try:

5 from 11 votes

Lemon Buttermilk Cake Recipe

By: Lil’ Luna
Lemon Buttermilk Cake is topped with a delicious lemony glaze. It is refreshing with the perfect amount of sweetness!
Servings: 15
Prep: 20 minutes
Cook: 25 minutes
Total: 45 minutes

Ingredients 

Cake

  • 2 1/2 cup cake flour
  • 1 tsp baking powder
  • 1 tsp baking soda
  • 1/2 tsp salt
  • 3/4 cup buttermilk room temperature
  • 1/4 cup fresh lemon juice (3 medium lemons)
  • 1 tsp vanilla extract
  • 1 3/4 cup sugar
  • 3 tbsp lemon zest
  • 1 1/2 sticks butter softened
  • 3 large eggs
  • 1 egg yolk room temp

Glaze

Instructions 

  • In a medium bowl, combine flour, baking powder, baking soda, and salt. Set aside.
  • In a liquid measuring cup, combine buttermilk, lemon juice, and vanilla. Set aside.
  • With a stand mixer, beat sugar and lemon zest until smooth. Transfer ¼ cup sugar mixture to a small bowl, cover, and set aside.
  • Add butter to the sugar remaining in the mixer and beat until light and fluffy. Beat in eggs and egg yolk one at a time. On low speed, add the flour mixture in 3 additions, alternating with 2 additions of the buttermilk mixture. Beat until smooth.
  • Pour batter into a greased and floured 10×15 pan and smooth the top with a spatula. Bake at 325, for 25-35 minutes, or until golden brown. Transfer to a wire rack and let cool for 10 minutes.
  • For the glaze, whisk powdered sugar, lemon juice, and milk until smooth. Gently spread over warm cake and sprinkle reserved sugar mixture evenly over the top. Serve warm or cool for at least 2 hours.

Nutrition

Serving: 15g, Calories: 370kcal, Carbohydrates: 64g, Protein: 5g, Fat: 11g, Saturated Fat: 7g, Trans Fat: 1g, Cholesterol: 76mg, Sodium: 261mg, Potassium: 94mg, Fiber: 1g, Sugar: 48g, Vitamin A: 378IU, Vitamin C: 3mg, Calcium: 42mg, Iron: 1mg

Nutrition information is automatically calculated, so should only be used as an approximation.

About Kristyn

My name is Kristyn and I’m the mom of SIX stinkin’ cute kids and the wife to my smokin’ hot hubby, Lo. My mom’s maiden name is Luna, and I’m one of the many crafty “Lil’ Lunas” in the fam. On this site I like to share all things creative - from recipes to home decor to gifts and home decor ideas. Welcome!

So Easy & So Yummy

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5 from 11 votes (4 ratings without comment)

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Recipe Rating




16 Comments

  1. Olivia says:

    5 stars
    Another perfect dessert that is sure to please all lemon lovers! So yummy.

  2. Amy L Huntley says:

    5 stars
    The Lemon Buttermilk is the perfect combo! So moist and full of lemony flavor! The lemon glaze takes it over the top too!

  3. Natalie says:

    5 stars
    This is so soft!! Love the lemon flavor & that glaze makes the cake even better! It was the easiest, too!

  4. Lisalia says:

    5 stars
    This was so tender and light. I cannot believe I haven’t thought of it before – to put the flavors of lemon and buttermilk together. A match made in heaven!

    1. Lil'Luna Team says:

      Thank you!! It is a wonderful flavor combo. So glad you enjoyed the cake!

  5. Tarcisia says:

    Thanks for sharing your recipes. I like lemons too! Just to clarify that you only need 1/4 cup of lemon juice for this recipe?

    1. Lil'Luna Team says:

      You’re welcome! Yes, that’s correct. Hope you enjoy the cake!!

  6. Jolyn Salas says:

    5 stars
    Love lemon

  7. Ana Maria says:

    5 stars
    We love sheet cake and lemon cake, can’t wait to try your lemon sheet cake!

  8. Lorrie says:

    Can I use this recipe to make an orange cake by substituting orange juice and zest in place of lemon?

    1. Lil' Luna says:

      Haven’t tried, but I bet you could! I’d love to know how it turns out! Good luck!

  9. Nellie says:

    I have never seen an 11″x14″ baking pan and couldn’t find one when I googled it either. Like Tammy, I would like to know the correct temperature and baking time for a 13″x9″ pan. Thank you. Cake looks luscious! ????

    1. Lil' Luna says:

      I edited the recipe – It was a 10×15 pan. For a 13×9, you’ll need to cook a little longer (5-10 minutes), but I’d double check with a tooth pick to make sure it’s cooked. 😉

  10. Tammy says:

    So if I used a 9×13 pan what temp would I bake this for and for how long? Looks absolutely delicious.