Ermine frosting, also known as cooked flour frosting or roux frosting, is a less sweet alternative to buttercream. It's creamy, silky, and delicious. This egg-free frosting is my go-to recipe for any cake I make.
12tablespoonsunsalted butter(170 grams; at room temperature)
2teaspoonsvanilla extract
Instructions
In a 2-quart saucepan, whisk together flour and sugar; this keeps your flour from clumping. Stir in milk, and mix until dissolved.
Cook over medium heat, whisking constantly and scraping the bottom, until the mixture comes to a bubble in the center and has thickened to a pudding-like consistency. This takes me around 10 minutes for a single batch, and around 13 minutes for a double batch.
Scrape the mixture to the bowl of a stand mixer. Using the paddle attachment, beat on medium high for around 10-15 minutes, until the temperature cools to around 80F.
Reduce the speed to low. Add the butter a few tablespoons at a time, adding more once the previous addition has mostly disappeared.
Scrape everything down, and stir in the vanilla.
Beat on high for 4-6 minutes, until the frosting is creamy.
Frost cake immediately. Store frosted cake and leftover frosting in refrigerator.
The frosting is best if you give it a chance to set in the refrigerator before you eat it. Let the cake warm at room temperature for a few minutes before eating.
Notes
Frosting may look grainy after a few days, but still tastes good. Leftover frosting deflates and does not spread well, but is still tasty.I do not recommend any substitutions for this recipe. For an almond-flavored frosting, use 1 ¼ teaspoons almond extract and ½ teaspoon vanilla. This makes enough frosting for 18 cupcakes, a single layer cake, or a 9x13-inch cake, without excessive frosting. [Cupcakes in photos in this recipe have more frosting than I preferred.] Increase the ingredients by 50% for 24 cupcakes; that may be enough for a double layer cake, but I recommend doubling the recipe to be safe.For frosting lovers, consider this recipe as written to frost 12 cupcakes or a single layer cake. Increase ingredient quantities by 50% for a 9x13-inch cake, and double for 24 cupcakes or a double layer cake. This frosting deflates easily, and so is not good for decorating or piping.I hate to use the mixer to cool the mixture, but it will take over an hour to get the temperature of the freshly-boiled mixture to 80F. This is not food-safe since the frosting contains dairy.Adapted from King Arthur Baking.Calorie count calculated in MyNetDiary, assumes 2% milk, and is an estimate only.