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two lemon cupcakes on a mini cake stand with lemon cupcakes in a the background
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5 from 13 votes

Lemon Cupcakes

These citrusy Lemon Cupcakes are soft and moist, bursting with lemon flavor, and topped with a zingy lemon ermine frosting. You’ll love the refreshing and tart citrus flavor in every bite.
Prep Time30 mins
Cook Time30 mins
Cooling Time40 mins
Total Time1 hr 40 mins
Course: Dessert
Cuisine: American
Servings: 12
Calories: 439kcal

Equipment

Ingredients

Cupcakes

  • 1 1/4 cups (250 grams) granulated sugar
  • 2 tablespoons lemon zest about 2-3 lemons depending on the size
  • 1 1/2 cups (212 grams) Bob’s Red Mill Unbleached All-Purpose Flour
  • 1 teaspoon baking powder
  • 1/2 teaspoon kosher salt
  • 12 tablespoons (169 grams) unsalted butter room temperature
  • 2/3 cup whole milk room temperature
  • 2 (100 grams) large eggs
  • 1/4 cup fresh squeezed lemon juice

Lemon Ermine Frosting

  • 5 teaspoons cornstarch
  • 1 1/2 tablespoons unbleached all-purpose flour
  • 3/4 cup (150 grams) granulated sugar
  • 3/4 cup whole milk
  • 1/4 teaspoon kosher salt
  • 2 tablespoons lemon juice
  • 14 tablespoons (198 grams) unsalted butter room temperature

Instructions

Cupcakes

  • Preheat the oven to 350F (180C). Line the muffin pan with cupcake liners.
  • Place the sugar in a medium-sized bowl and zest the lemon directly onto the sugar. Once you have about 2 tablespoons, use your fingers to rub the sugar and lemon zest together until the sugar turns yellow and is very fragrant. Juice the lemons until you have 1/2 of lemon juice.
  • Place the sugar, the flour, the salt and the baking powder in the bowl of a stand mixer. With the paddle attachment mix the dry ingredients on medium-low for 30 seconds to thoroughly combine the dry ingredients. Add the butter and mix on medium speed until the butter is thoroughly incorporated and the mixture is a little crumbly, about 1 minute. Add all the milk and mix on medium speed until the milk is incorporated and the batter looks creamy. Be careful not to overmix. Scrape the sides and bottom of the bowl.
  • Whisk the eggs and add the eggs to the batter. Mix on medium speed until the eggs are incorporated. Add the lemon juice and mix on medium speed just until incorporated. Scrape the sides and bottoms of the bowl and fold the batter by hand to ensure all the butter is mixed together.
  • Divide the batter evenly between the 12 cups of the muffin pan, about 65 grams each. Each muffin tin should be about 2/3 full.
  • Bake the cupcakes for 20-22 minutes until they are done. Remove the cupcakes from the oven and let them cool in the pan for 10 minutes before removing the cupcakes from the pan to a cooling rack. Allow the cupcakes to cool completely before frosting them.
  • If making the cupcakes one day in advance before frosting them, store the cupcakes in an airtight container at room temperature.

Lemon Ermine Frosting

  • Sift the flour and cornstarch into a 3 or 4-quart saucepan. Add the sugar and salt and whisk for 30 seconds to thoroughly combine the ingredients. Whisking constantly, slowly add the milk until it is incorporated and there are no lumps. Add the lemon juice and whisk to incorporate.
  • Place the mixture over medium-high heat and whisk constantly until the mixture has thickened and you see a 2 or 3 bubbles pop on the surface.
  • Pour the mixture into the bowl of a stand mixture. With the whisk attachment mix the flour mixture on medium low speed for 10-12 minutes until the mixture reaches room temperature.
  • In a medium-sized bowl bowl cream the butter by hand with a spatula until it looks creamy. Add all the butter to the flour mixture and mix on medium-high speed until the mixture is fluffy and creamy, 5-6 minutes.
  • Frost the cupcakes and serve.

Storage

  • Leftover cupcakes can be stored in the refrigertor in an airtight container for up to 3 days.

Notes

This recipe makes 12 cupcakes.  If you want 24 for a party double the recipe.  If you only have one muffin pan, allow it to completely cool before baking the second batch.
 

Nutrition

Calories: 439kcal | Carbohydrates: 49g | Protein: 4g | Fat: 27g | Saturated Fat: 16g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 7g | Trans Fat: 1g | Cholesterol: 96mg | Sodium: 171mg | Potassium: 89mg | Fiber: 1g | Sugar: 35g | Vitamin A: 845IU | Vitamin C: 4mg | Calcium: 50mg | Iron: 1mg