Lemon Cake with Blackberry Buttercream

Sorry it has been over a week since my last post! Traveling makes it difficult to find a kitchen to cook, but I hope to be able to make more food this week while I am at my parent’s house. Last week I was in Missoula, Montana visiting Jeremy’s family. We had a wonderful time, and even got to see a herd of buffalo up close! It was pretty amazing. I didn’t cook much, but I did make a cake for Jeremy’s parents’ 25th anniversary. I wanted to do marionberry frosting because we were in the northwest and marionberries are the big berry of Oregon. They’re a type of blackberry, so any sort of blackberry can work as a substitution for marionberries. I thought a light lemon flavor would go well with the berries, so I put just a teeny bit of lemon juice and grated lemon zest into the cake. And voila! Lemon cake with blackberry buttercream was born.

The frosting came out really fluffy, and the cake was nice and airy too—very moist and sponge-y. I just really loved the textures of this cake, so whipped and silky! And flavor-wise, lemon and blackberry and a classic pair for a reason. Something about the bright lemon zest combined with the jammy sweet dark berries just makes your taste buds go wild with joy. I’ll definitely be making this lemon cake with blackberry buttercream again for my upcoming birthday. I do want to mention, though, that the hydrangeas I used as the topper on the cake are *only decorative*. They are NOT an edible flower. If you want to keep everything edible decoration-wise, you can sprinkle fresh blackberries on top. And if you’re looking for more delicious lemon sweets, let me point you towards my classic lemon bars. Enjoy, my friend!

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Lemon Cake with Blackberry Buttercream

This light and airy cake is sure to become a party favorite! Please note, though, that the hydrangea flowers decorating the top of this cake are *NOT* edible and are for decoration only.

Course Dessert

Cuisine American

Keyword lemon cake

Prep Time 20 minutes

Cook Time 1 hour

Cooling Time 45 minutes

Total Time 2 hours 5 minutes

Servings 12 people

Calories 745 kcal

Ingredients

Lemon Cake

• 2 3/4 cups cake flour
• 1 tablespoon baking powder
• 1/4 teaspoon flake kosher sea salt
• 1 2/3 cups granulated sugar
• 3/4 cup unsalted butter softened
• 4 egg Whites
• 1 egg
• 2 tablespoons honey
• 2 teaspoons vanilla extract
• 1 teaspoon lemon juice
• 1 teaspoon lemon zest finely grated
• 1 cup whole milk
• 3/4 cup blackberries for garnish

Blackberry Buttercream

• 3 tablespoons blackberries crushed
• 2 tablespoons water
• 1/2 cup plus 2 tablespoons granulated sugar
• 1/4 teaspoon kosher sea salt
• 1 1/2 cups unsalted butter softened
• 4 cups powdered sugar
• 1/2 teaspoon lemon zest finely grated

Instructions

Blackberry Buttercream

1. Bring the crushed blackberries and the water to a boil in a small saucepan. Stir in the granulated sugar and salt, lower the heat, and allow the syrup to simmer for 5 minutes. Remove from heat, transfer contents to a small bowl, and place in the refrigerator until the syrup cools to room temperature.

2. In the bowl of an electric mixer fitted with the paddle attachment, beat the butter at medium low speed until smooth. Reduce the speed to low, add the powdered sugar and the cooled blackberry mixture, and continue beating until the mixture is just incorporated. Increase the speed to medium and beat until the buttercream becomes light and fluffy, about 3 to 5 minutes.

Lemon Cake

1. Preheat the oven to 350 degrees Fahrenheit and grease two 9-inch cake pans, lining the bottom of each one with a circle of parchment paper. Set them aside.
2. In a medium bowl, mix together the flour, baking powder, and salt and set aside.
3. In the bowl of an electric stand mixer fitted with the paddle attachment, beat together the butter and sugar at medium low speed until fluffy and smooth. Add the egg whites and egg, one at a time, mixing well after each addition.  Add the honey, vanilla extract, lemon juice, and lemon zest and mix until combined.
4. Mixing at low speed, add half of the flour mixture to the butter mixture, then add half the milk. Repeat once more so that all of the flour mixture and milk are now in the batter. Mix until the batter just smooths out. Evenly distribute the batter between the two cake pans and place in the oven. Bake until a toothpick inserted into the center of each one comes out clean, about 40 to 45 minutes.
5. Remove the cakes from the oven and allow to cool for 10 minutes before inverting the cakes onto a wire rack to remove them from the pans and allowing them to cool completely. Peel off and discard the parchment paper.
6. Once cooled, use a long bread knife to cut the cakes in half horizontally so that you now have 4 layers instead of 2. Layer and frost the cake with the blackberry buttercream. Garnish with the fresh blackberries and serve.
7. NOTE: The hydrangea flowers on top of the cake pictured are for decoration ONLY. They are *NOT* edible flowers.

Recipe Notes

The hydrangea flowers on top of the cake pictured are for decoration ONLY. They are *NOT* edible flowers.

Nutrition Facts

Lemon Cake with Blackberry Buttercream

Amount Per Serving

Calories 745 Calories from Fat 324

% Daily Value*

Fat 36g55%

Saturated Fat 22g138%

Trans Fat 1g

Polyunsaturated Fat 2g

Monounsaturated Fat 9g

Cholesterol 108mg36%

Sodium 134mg6%

Potassium 217mg6%

Carbohydrates 102g34%

Fiber 1g4%

Sugar 80g89%

Protein 6g12%

Vitamin A 1144IU23%

Vitamin C 3mg4%

Calcium 91mg9%

Iron 1mg6%

* Percent Daily Values are based on a 2000 calorie diet.