Lemon Cupcakes with Blackberry Frosting

A soft cupcake jam packed with lemon flavor and topped with a blackberry buttercream frosting. These lemon cupcakes aren’t too sweet and makes a great dessert for children and adults.

I don’t know how many cupcakes I have made in the last 15 years but there have been some distinct favorites from my friends. These lemon cupcakes are one of them. While I normally make it with a lemon buttercream there were these blackberries that just looked like they wanted to be added to some buttercream frosting. 

Lemon cupcakes with a kick

One of the reasons this recipe is a bit different is that it uses buttermilk and lemon juice as liquid ingredients. With the addition of zest from at least 2 lemons depending on the size you will get a cupcake packed with lemon flavor. 

Ingredients for lemon cupcakes
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Because lemon juice and buttermilk are both acidic the leavening ingredients will start reacting immediately. This is something to keep in mind when filling the cupcakes. You will want to make sure you have enough cupcake pans to bake all of them at once. Otherwise, the second batch will not rise since the leavening agents have been essentially used up. 

lemon cupcakes ready to go into the oven
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Baked lemon cupcakes
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While lemon juice does provide some lemon flavor the best way to get lemon flavor is to use lemon zest. The best lemons to use are those where their outer skin is still shiny an smooth. The reason for this is due to the oils in the yellow part of the skin. The older the lemon is the less oil the skin contains and therefore there will be much less of that lemon flavor. 

lemon cupcakes with bowl of blackberries
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One of the tips for making sure that all of the cupcakes are the same size is by using a cookie dough scoop. I use the 3 tablespoon scoop for cupcakes. The other thing you will want to watch out for if you are not using a cookie scoop is to make sure that the cupcake cups are filled no more than half full. This will help prevent the batter from spilling over,

Blackberry frosting on lemon cupcakes
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Close up of lemon cupcakes
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Lemon Cupcakes with Blackberry Frosting

Sean
A lemon cupcake topped with a a blackberry buttercream frosting
5 from 4 votes
Prep Time 15 mins
Cook Time 15 mins
Total Time 30 mins
Course Dessert
Cuisine American
Servings 18 cupcakes
Calories 372 kcal

Equipment

  • 2 Cupcake tins
  • Sauce pan
  • Piping bag with tip
  • Fine mesh sieve
  • Stand mixer with paddle attachment

Ingredients
 
 

Lemon Cupcakes

  • 2 cup all-purpose flour spooned and leveled
  • ½ cup granulated sugar
  • ½ cup brown sugar packed
  • 2 tbsp lemon zest about 2 lemons
  • ¼ tsp baking soda
  • 1 tsp baking powder
  • ½ tsp kosher salt
  • ¾ cup butter unsalted, softened
  • 2 eggs room temperature
  • ¾ cup buttermilk
  • ¼ cup lemon juice

For the Buttercream:

  • 1 cup butter
  • 4 cups powdered sugar
  • ¼ tsp salt
  • 2 tbsp lemon juice
  • cup fresh blackberries

Instructions
 

Making the Cupcakes:

  • Preheat oven to 350F or gas mark 4 and place cupcake liners in the cupcake tin.
  • Whisk the flour, baking soda, baking powder and salt and then sift into a large bowl and set aside.
  • On medium high speed, cream the butter and sugar until light. Then add the lemon zest and eggs.
  • Reduce the speed to low and add half of the flour mixture, mix until just incorporated, then add the buttermilk and lemon juice mixing until just combined, and follow up with the remaining flour mixture.
  • Fill cupcake papers about 2/3 the way up. Bake for 15-18 minutes or until the springy to the touch.

Making the Blackberry Buttercream:

  • Ina saucepan heat the blackberries and lemon juice until the blackberries release their liquid and comes to a boil. Strain with a fine mesh sieve and allow to cool.
  • Cream the butter and salt for a few minutes then sift in the powdered sugar in a few batches, mixing in between. Add the cooled blackberry liquid and mix until combined. Scrape down and to a piping bag and decorate the cooled cupcakes.

Nutrition

Serving: 1cupcakeCalories: 372kcalCarbohydrates: 50gProtein: 3gFat: 19gSaturated Fat: 12gPolyunsaturated Fat: 1gMonounsaturated Fat: 5gTrans Fat: 1gCholesterol: 67mgSodium: 265mgPotassium: 56mgFiber: 1gSugar: 38gVitamin A: 595IUVitamin C: 3mgCalcium: 41mgIron: 1mg
Nutrition Disclaimer*
Keyword Blackberry, Buttercream, Cupcake, Lemon
Tried this recipe?Let us know how it was!
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3 thoughts on “Lemon Cupcakes with Blackberry Frosting”

  1. 5 stars
    These look so delicious! I don’t think I have ever had a lemon cupcake with blackberry frosting The two sound like the perfect taste pair!

  2. 5 stars
    The cupcakes look so good, and the color of the frosting too. loved this simple recipe, definitely a must-try.

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