Blueberry Cupcakes with Lemon Buttercream Frosting and Blueberry Sauce


Why?? Why do I keep making cupcakes to just have around to temp me so all day long? Well, I love them so I’m not going to stop making them. I guess I’m just going to have to gift them a lot =).

These cupcakes will basically leave you speechless! I made this recipe because the lemon blueberry combo is one of my new favorites. I’m so proud of the how the results turned out with this recipe (sorry I just have to brag a little about these)! You get a fluffy, moist, blueberry cupcake generously covered with an amazingly delicious, fluffy and flavorful lemon buttercream frosting and then to finish it off its drizzled with a nearly pure blueberry blueberry sauce. Yes, they melt in your mouth!
P.S. if you’re like me you may want to serve them with a side of blueberry sauce. I’ve never done it with a cupcake before but I kind of served it up like a pancake. I kept drizzling each bite with more blueberry sauce. I just couldn’t get enough of it! I should be the new thing in cupcakes if you ask me, cupcakes with a side of sauce for dunking or drizzling.
Good luck stopping at just one cupcake with these…



Blueberry Cupcakes with Lemon Buttercream Frosting and Blueberry Sauce

Yield: 12 Cupcakes


  • 1 1/2 cups all-purpose flour
  • 1 1/2 tsp baking powder
  • 1/2 tsp salt
  • 1/4 cup butter , melted
  • 2 Tbsp vegetable oil
  • 1 cup granulated sugar
  • 1 large egg
  • 1 tsp vanilla extract
  • 1 1/2 tsp lemon zest (the zest of about 1 large lemon or 1 1/2 small lemons)
  • 1/4 cup sour cream
  • 2/3 cup buttermilk
  • 1 cup frozen blueberries

Lemon Buttercream Frosting

  • 1/2 cup butter , softened
  • 4 cups powdered sugar
  • 2 - 3 Tbsp heavy cream
  • 2 Tbsp fresh lemon juice
  • 1/2 tsp lemon zest
  • Yellow food coloring , optional

Blueberry Sauce

  • 2 Tbsp granulated sugar
  • 1 tsp cornstarch
  • 1 1/2 cups fresh or frozen blueberries
  • 1/4 cup water


  1. Preheat oven to 350 degrees. In a mixing bowl, whisk together flour, baking powder and salt, set aside. In a large mixing bowl, using an electric mixer, blend together melted butter, vegetable oil and granulated sugar until well blended, about 30 seconds. Stir in egg, vanilla and lemon zest. Blend in sour cream. Add in flour mixture alternating with buttermilk in two alternate batches, blending until combine after each addition. Fold in frozen blueberries. Divide mixture evenly among 12 paper lined muffin cups, filling each one about 3/4 full. Bake cupcakes 20 - 25 minutes until toothpick inserted in center comes out clean. Allow to cool completely then frost cupcakes with Lemon Buttercream Frosting and drizzle with chilled blueberry sauce. For best results, serve immediately after drizzling with blueberry sauce. Store in an airtight container.

Lemon Buttercream Frosting

  1. Combine all ingredients in a large mixing bowl, using an electric mixer blend together until smooth and fluffy about 1-2 minutes. Tint with yellow food coloring if desired.
  2. Note: if you don't want the piled high style of frosting (if you don't like a lot of frosting) then half a batch would be enough. Personally I don't normally like a lot of frosting but this frosting is so good that I liked the piled high style for these, plus it made for prettier piping with the blueberry sauce =).

Blueberry Sauce

  1. In a medium saucepan, whisk together sugar and cornstarch. Mix in blueberries and water. Bring mixture to a gentle boil over medium heat, stirring frequently. Once mixture reaches a boil, reduce heat and simmer 3 minutes, stirring frequently. Pour mixture into a blender or food processor and blend until smooth (I blended about 30 seconds on low speed in the blender). Cool mixture completely in the refrigerator or freezer before drizzling over cupcakes.
  2. Note: I made this recipe to be more than enough sauce for drizzling the cupcakes. I liked it so much that I piped some of the sauce over the top then I served the cupcake with additional blueberry sauce. I loved it just that much =), but if you don't want that much blueberry sauce then half of the batch listed would be enough. You could always make the full batch and if you have left over you could use it for pancakes, smoothies or drizzle it over your favorite Greek yogurt (or just eat it by the spoonful its basically just pureed blueberries, yum).
  3. Recipe Source: Cooking Classy


  • Sarah (a dash and a pinch): I absolutely love your composition in this photo! Using the teacups to add height was genius. Thanks for sharing! :) May 18, 2012 at 9:04am Reply

  • Jaclyn: Dede – thanks so much! I used a piping gun for the frosting (I prefer it over piping bags, don’t know why =), then I simply put the blueberry sauce in a small ziploc bag, snipped a very small tip of the corner then drizzled it along the edge of the piped frosting, turning and tilting as I went. I hope that helps and I hope you love these =)! May 8, 2012 at 10:45am Reply

  • Dede: Absoletely beautiful. do you mind sharing what tip you used to pipe the frosting on your cupcake? Lemon is my husband’s favorite. Looks like I will be making these this weekend. May 8, 2012 at 9:44am Reply

  • Jen @ Jens Favorite Cookies: I just love lemon and blueberry together. This one looks like a winner!! May 7, 2012 at 8:28pm Reply

  • Sara: These cupcakes are gorgeous! What a showstopper dessert, yum! :) May 7, 2012 at 4:59pm Reply

  • Cathleen: These look perfect! Your photos are gorgeous! I don’t think I could keep myself from eating these, they look too good! May 7, 2012 at 9:57am Reply

  • Jaclyn: Thanks! I think these are a new favorite cupcakes of mine. I’m getting to have too many favorites =). May 7, 2012 at 8:43am Reply

  • Chung-Ah | Damn Delicious: Beautiful! I just love the blueberry-lemon combo too, and adding that blueberry sauce is absolutely genius! May 6, 2012 at 9:32pm Reply

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