Lemon Buttermilk Cupcakes are the kind of dessert I make when I want something that tastes clean, bright, and classic. They’re tender and fluffy, with a real lemon flavor that doesn’t get lost once the frosting goes on.
For me, the best part is the combo of buttermilk in the cake and a smooth lemon buttercream. The cupcakes stay soft, and the frosting has that punchy lemon finish that makes the whole thing feel lively instead of flat.
I like these for spring get-togethers, showers, and birthday tables where chocolate feels too heavy. They’re also a nice change-up for bake sales because lemon stands out in a sea of vanilla and chocolate.
Why You’ll Love This Recipe
Bright lemon flavor: Lemon zest and fresh juice give you that clear citrus taste, not the muted kind.
Soft texture: Buttermilk keeps the crumb tender, and they stay nice and light.
Simple frosting: The lemon buttercream mixes up fast and pipes cleanly if you want a neat finish.
Easy to dress up: A little extra zest or a thin lemon slice on top makes them look finished with almost no effort.
Reliable for parties: They hold up well once frosted, so they’re easy to serve and transport.
Ingredients You’ll Need
Lemon Buttermilk Cupcakes
- All-purpose flour: I use regular all-purpose flour here. It gives the cupcakes enough structure without making them heavy.
- Baking powder: This is the main lift. Make sure it’s not old, because flat cupcakes are usually a leavening issue.
- Baking soda: Just a little, since the buttermilk needs it. It helps the cupcakes rise nicely and keeps the crumb soft.
- Fine salt: Don’t skip it. It keeps the lemon flavor from tasting sharp.
- Unsalted butter: Softened butter creams better and gives a smoother crumb. If it’s still cold, it won’t mix in the way you want.
- Granulated sugar: Basic white sugar is perfect here. It lets the lemon come through.
- Eggs: Room-temperature eggs mix in more evenly. Cold eggs can make the batter look a little broken.
- Vanilla extract: A little vanilla rounds out the lemon. It makes the cupcakes taste more “bakery familiar.”
- Lemon zest: Fresh zest is where most of the lemon aroma comes from. I use a microplane and try not to dig into the white pith.
- Fresh lemon juice: Fresh is best here. Bottled juice can taste flat or a little harsh.
- Buttermilk: This is what keeps the cupcakes tender. Plain kefir works too, or you can use milk with a little lemon juice stirred in.
Lemon Buttercream Frosting
- Unsalted butter: Use softened butter so the frosting gets fluffy instead of lumpy. If it’s too soft and greasy, chill it a bit before you start.
- Powdered sugar: This thickens and sweetens the frosting. Sift it if yours is very clumpy, especially if you’re piping.
- Fresh lemon juice: Adds tang and keeps the frosting from tasting one-note. Start with the amount listed and adjust from there.
- Lemon zest: I like zest in the frosting too because it makes the lemon taste more real. It’s optional, but I never skip it.
- Vanilla extract: Just enough to round it out. Lemon and vanilla together work really well here.
- Salt: A small pinch makes the frosting taste less sugary. It matters more than you’d think.
- Heavy cream or milk: This is for texture. Add a little at a time until it spreads or pipes the way you want.
Optional Garnish
- Extra lemon zest: Easy, pretty, and it hints at what you’re eating. Add it right before serving for the best look.
- Thin lemon slices: Use very thin slices so they sit nicely on top. I usually cut them into small half-moons for cupcakes.
Recipe Instructions
- Preheat the oven: Heat the oven to 350°F, then line a 12-cup muffin pan with liners.
- Mix the dry ingredients: Whisk the flour, baking powder, baking soda, and salt together in a medium bowl.
- Cream the butter and sugar: Beat the butter and sugar until light and fluffy.
- Add the eggs: Beat in the eggs one at a time, then mix in the vanilla and lemon zest.
- Add the lemon juice: Mix in the lemon juice until combined.
- Add the flour and buttermilk: Alternate adding the dry ingredients and the buttermilk, mixing just until you no longer see dry flour.
- Fill the liners: Divide the batter evenly into the liners, filling each about two-thirds full.
- Bake: Bake for about 16 to 18 minutes, until the tops spring back and a toothpick comes out clean.
- Cool: Cool the cupcakes for 5 minutes in the pan, then move to a rack and cool completely.
- Beat the butter: For the frosting, beat the butter until smooth.
- Add the powdered sugar: Gradually beat in the powdered sugar until combined.
- Flavor the frosting: Add the lemon juice, lemon zest, vanilla, and salt, then beat until fluffy.
- Adjust the texture: Add heavy cream or milk 1 tablespoon at a time if needed, then adjust sweetness or tang with more powdered sugar or lemon juice.
- Frost the cupcakes: Pipe or spread frosting onto fully cooled cupcakes and add garnish if you want.
Some of my tips!
This is the part that really makes a difference. If you only read one section, make it this one because this is where I share the little trick that helps the recipe turn out so well.
Recipe Tips & Tricks
Use room-temperature ingredients. Soft butter, room-temp eggs, and room-temp buttermilk mix together quickly and evenly. The batter looks smoother and the cupcakes bake up more tender.
Don’t overmix once the flour goes in. Mix just until the last streaks of flour disappear. Overmixing makes cupcakes tougher and a little bready.
Zest first, then juice. It’s much easier to zest a whole lemon than a squeezed one. I zest right into a small bowl so I don’t lose any of the oils.
Watch the bake time closely. Lemon cupcakes can go from done to dry fast if they stay in too long. Pull them when the tops spring back and a toothpick comes out clean.
Brush on lemon syrup if you want more lemon. A light lemon syrup on cooled cupcakes adds extra punch. Keep it light so the cupcakes don’t get soggy.
Make some touches!
There are plenty of easy ways to serve this depending on the occasion. Keep it simple, or add a few small touches to make it feel a little more special.
Serving Suggestions
- Tea: These are great with hot tea, especially Earl Grey or English breakfast. The lemon plays nicely with a strong cup.
- Coffee: I usually serve these with plain coffee or a latte. The frosting is sweet enough, so I don’t go too fancy with the drink.
- Fresh berries: A bowl of strawberries, blueberries, or raspberries on the side is simple and works well here. It also makes a cupcake plate look a little more finished.
- Extra garnish: Add a little lemon zest right before serving if you want them to smell extra lemony. Thin lemon slices are nice for parties, but keep them small.
Save it for later
This section covers how to store leftovers and what parts of the recipe you can prepare ahead of time.
Storage and Make Ahead
Store frosted cupcakes airtight at room temperature for up to 1 day. If your kitchen is warm, I’d move them to the fridge so the buttercream stays firm.
Refrigerate for up to 4 days in a covered container. Let them sit at room temperature before serving so the cake softens back up a bit.
You can make the cupcakes ahead and frost them the next day. I usually keep the cupcakes covered and wait to garnish until right before serving.
If you want to freeze them, I’d freeze the unfrosted cupcakes wrapped well. Thaw at room temperature, then frost when they’re fully thawed.
A few quick answers
This section covers a few extra details that may help before you head to the recipe card.
Recipe FAQs
Can I substitute for buttermilk?
Yes. Plain kefir works well, and it’s the closest swap.
If you don’t have that, use regular milk mixed with about 1 tablespoon lemon juice, then let it sit for a few minutes before using.
How do I know when the cupcakes are done?
The tops should spring back when you lightly press them, and a toothpick should come out clean. If you see wet batter on the toothpick, give them another minute or two.
Can I make these more lemony?
Brush the cooled cupcakes with a light lemon syrup before frosting. You can also add a little extra zest to the batter and frosting, which is usually my favorite way to boost lemon without changing the texture.
Why did my buttercream turn out too thick or too thin?
If it’s too thick, add heavy cream or milk a little at a time until it spreads easily. If it’s too thin, beat in more powdered sugar and let it mix for a minute so it firms up.
You might also like
Before you go, take a look at a few other recipes below the recipe card. They use similar ingredients in a different way and are worth saving too.
MORE DINNER RECIPES TO TRY
Lemon Buttermilk Cupcakes
INGREDIENTS
Lemon Buttermilk Cupcakes
- 1 1/2 cups all-purpose flour
- 1 1/2 tsp baking powder
- 1/4 tsp baking soda
- 1/4 tsp fine salt
- 1/2 cup unsalted butter softened
- 1 cup granulated sugar
- 2 large eggs room temperature
- 1 tsp vanilla extract
- 2 tsp lemon zest
- 1/4 cup fresh lemon juice
- 3/4 cup buttermilk room temperature.
Lemon Buttercream Frosting
- 1/2 cup unsalted butter softened
- 3 cups powdered sugar
- 3 tbsp fresh lemon juice
- 1 tsp lemon zest
- 1/2 tsp vanilla extract
- pinch of salt
- 1 to 2 tbsp heavy cream or milk as needed.
Optional Garnish
- extra lemon zest
- thin lemon slices.
INSTRUCTIONS
Bake Cupcakes
- heat oven to 350 F and line a 12-cup muffin pan with liners
- whisk flour baking powder baking soda and salt
- beat butter and sugar until light and fluffy then beat in eggs one at a time followed by vanilla and lemon zest
- mix in lemon juice then alternate adding dry ingredients and buttermilk mixing just until combined
- divide batter evenly into liners filling about two thirds full
- bake until tops spring back and a toothpick comes out clean then cool 5 minutes in pan and cool completely on a rack.
Make Frosting
- beat butter until smooth then gradually beat in powdered sugar
- add lemon juice zest vanilla and salt and beat until fluffy
- adjust texture with cream or milk and adjust sweetness or tang with more powdered sugar or lemon juice as needed.
Assemble
- pipe or spread frosting onto fully cooled cupcakes and garnish if desired.
