Classic Lemon Ermine Frosting

My Classic Lemon Ermine Frosting recipe is bright, fluffy, and loaded with lemon flavor that you cannot resist.

By Patricia | Published on February 5, 2025 | Updated on February 5, 2025
Classic Lemon Ermine Frosting

Stats

Prep time15 mins
Cook time5 mins
Rest time60 mins
Total time80 mins
Servings4

Video

Ingredients

  • 2 cups (16floz/480ml) whole milk
  • 1 ½ cups (12oz/340g) granulated sugar
  • ½ cup (2½oz/71g) all-purpose flour
  • 1 ½ cups (12oz/345g) unsalted butter (softened and sliced)
  • 2 tablespoons fresh lemon juice
  • 1 tablespoon lemon extract
  • 1 tablespoon lemon zest

Instructions

  1. In a medium saucepan whisk the milk, sugar, and flour until smooth and then place over medium-low heat.
  2. Heat and whisk constantly until the mixture comes to a boil.
  3. Continue cooking and whisking for about just one or two more minutes, until the mixture thickens but not browned.
  4. Pour the mixture through a sieve and into a medium bowl. Place some plastic wrap over the surface of the mixture and let cool completely to room temperature (about 1 hour).
  5. Place the milk mixture in the bowl of a stand mixer fitted with a whisk attachment (or use a handheld electric mixer) and whisk on medium speed.
  6. Gradually add in the softened butter, a few slices at a time, until fully incorporated.
  7. Once the butter is whipped in, whisk in the lemon juice, extract and zest.
  8. Use immediately or refrigerate until ready to use. Let come back up to room temperature and re-whisk before using for the best spreading consistency.

Meet our bakers

Hi Bold Bakers! I’m Emma, a professionally-trained chef and baker from Ireland, cookbook author, and the creator of Bolder Baking. My mission is to help you bake with confidence anytime, anywhere with my trusted recipes and expert baking tips. You may know me from over 500+ videos on YouTube and TikTok, or as a guest judge on shows like Nailed It! on Netflix and Best Baker in America on Food Network. Together with my Bold Baking Team—Olivia, Patricia, and Emily—I aim to be your #1 resource for fearless and fun baking.

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