Most bakers have been there: you are halfway through whipping up a batch of cupcakes only to realize your pantry is completely empty of powdered sugar. Or perhaps you simply find traditional American buttercream—which relies heavily on icing sugar—to be cloyingly sweet and somewhat gritty. Whatever your motivation, the good news is that you do not need that snowy white powder to create a professional, silky, and delicious frosting.
By looking toward historical baking techniques and international styles, you can master several methods for making buttercream that rely on granulated sugar, flour, or even condensed milk. These alternatives often result in a superior mouthfeel and a more balanced flavor profile that lets the butter and vanilla truly shine.
The Science of Texture Without Powdered Sugar
To understand how to make buttercream without icing sugar, it is helpful to understand why icing sugar is used in the first place. Icing sugar contains cornstarch, which helps stabilize the frosting, and its fine grind allows it to dissolve instantly into the fat of the butter. When you switch to granulated sugar, you cannot simply swap them one-for-one, or your frosting will be crunchy and grainy.
The secret to success lies in dissolving the sugar crystals before they ever meet the butter. This is typically achieved through two main methods: creating a sugar syrup or cooking the sugar into a base like a custard or a roux. Once the sugar is in liquid form, it integrates seamlessly with the butter, creating a finish that is often smoother than any American buttercream could ever be.
The Flour Buttercream Method or Ermine Frosting
Also known as “boiled milk frosting,” Ermine frosting is the original topping for Red Velvet cake. It is incredibly light, almost like a whipped cream in texture, but stable enough for piping. It relies on a cooked base of flour, sugar, and milk.
Preparing the Pudding Base
To begin, you whisk together granulated sugar and all-purpose flour in a saucepan. Gradually add milk and cook the mixture over medium heat, whisking constantly. You want to bring this to a gentle simmer until it thickens into a consistency similar to a heavy pudding.
It is crucial to cook out the raw flour taste, which usually takes about one to two minutes once it begins to bubble. Once thickened, transfer the mixture to a bowl and cover it with plastic wrap, pressing the wrap directly onto the surface to prevent a skin from forming. This base must cool completely to room temperature. If it is even slightly warm, it will melt your butter and ruin the emulsion.
Incorporating the Butter
Once the pudding base is cool, beat your room-temperature butter until it is pale and fluffy. Add the pudding base one tablespoon at a time, beating thoroughly after each addition. As the two components combine, the mixture will transform into a cloud-like frosting. Because the sugar was dissolved in the milk during the boiling process, there is zero graininess.
The Luxury of Swiss Meringue Buttercream
If you are looking for a frosting that is stable enough for a wedding cake but tastes like vanilla ice cream, Swiss Meringue Buttercream (SMBC) is the gold standard. It uses egg whites and granulated sugar as its foundation.
The Double Boiler Technique
You start by placing egg whites and granulated sugar in a heatproof bowl over a pot of simmering water. You must whisk this constantly until the sugar has completely dissolved and the mixture reaches approximately 160 degrees Fahrenheit. You can test this by rubbing a bit of the liquid between your fingers; if it feels smooth and not sandy, it is ready.
Whipping the Meringue
Remove the bowl from the heat and use a stand mixer to whip the mixture on high speed. You are looking for stiff, glossy peaks. More importantly, you must continue whipping until the bowl itself feels cool to the touch. This can take 10 to 15 minutes.
The Butter Addition Phase
With the mixer on medium-low, add cubes of softened butter one by one. Do not panic if the mixture looks curdled or soupy halfway through. This is a normal part of the emulsion process. Continue beating, and eventually, the fats and proteins will bond, resulting in a dense, satiny buttercream that holds its shape beautifully in high temperatures.
French Buttercream for Richness
While Swiss Meringue uses egg whites, French buttercream uses egg yolks. This creates a frosting that is yellow in tint and exceptionally rich, similar to a frozen custard.
Creating the Pâte à Bombe
You begin by beating egg yolks until they are thick and pale. Meanwhile, you cook a syrup of granulated sugar and water on the stove until it reaches the “soft ball” stage, which is 240 degrees Fahrenheit.
With the mixer running, you slowly drizzle the hot syrup down the side of the bowl into the yolks. This process cooks the yolks safely while creating a stable foam. Like the Swiss method, you must whip this until the bowl is cool before adding your butter. This version is less ideal for pure white cakes but is arguably the best-tasting option for chocolate or coffee-flavored desserts.
The Two-Ingredient Russian Buttercream
If you want the easiest possible “no icing sugar” recipe, Russian buttercream is the answer. It requires only two ingredients: butter and sweetened condensed milk.
Whipping to Perfection
Because the sugar in condensed milk is already fully dissolved and the milk has been reduced, it acts as the perfect sweetener and stabilizer. You beat room-temperature butter for at least 5 minutes until it is nearly white. Then, you slowly pour in the sweetened condensed milk while continuing to whip.
The result is a very creamy, slightly milky frosting that pipes well. It is sweeter than Ermine or Swiss varieties but far less sugary than traditional American styles. It is a fantastic “emergency” frosting when you have a can of condensed milk in the back of the cupboard.
Important Tips for Success
Regardless of which method you choose, the temperature of your ingredients is the most critical factor. Your butter should be soft enough that an indentation remains when you press it, but it should not be greasy or melting. If your butter is too cold, the frosting will be lumpy. If it is too warm, the frosting will turn into a soup.
If your buttercream does “break” or curdle, it is usually a temperature issue. If it is too cold, use a hair dryer to gently warm the outside of the bowl while mixing. If it is too soupy, pop the whole bowl in the fridge for 15 minutes and then try whipping it again.
Flavoring Your Frosting
Since these buttercreams are less sweet than those made with icing sugar, they carry flavors exceptionally well. You can fold in melted (and cooled) chocolate, fruit purees, or nut butters. When adding liquids like vanilla extract or lemon juice, always add them at the very end of the mixing process to ensure the emulsion remains stable.
Frequently Asked Questions
Can I use granulated sugar instead of icing sugar in a standard recipe?
No, you cannot simply swap them. If you add granulated sugar directly to beaten butter, the crystals will never dissolve, resulting in a gritty and crunchy texture. You must use one of the methods mentioned above, such as making a flour roux or a sugar syrup, to ensure the sugar is fully integrated and smooth.
Why did my buttercream turn out runny?
The most common reason for runny buttercream is that the base—whether it was the flour pudding or the egg meringue—was still too warm when the butter was added. This melts the butter rather than allowing it to emulsify. To fix this, refrigerate the entire bowl for about 20 minutes and then whip it again on high speed.
How do I store buttercream made without icing sugar?
Buttercream made with cooked bases or eggs can be stored in an airtight container in the refrigerator for up to one week. However, because these frostings have a high butter content, they will go firm in the fridge. You must bring the frosting back to room temperature and re-whip it briefly before using it on a cake to restore its fluffy texture.
Is buttercream without icing sugar stable for piping flowers?
Yes, Swiss Meringue and Ermine buttercreams are actually preferred by many professional decorators for piping intricate flowers. They are much smoother than American buttercream, which allows for cleaner edges on petals. However, they are more sensitive to heat, so if you have “hot hands,” you may need to take breaks to let the piping bag cool down.
Does Ermine frosting taste like flour?
If prepared correctly, Ermine frosting does not taste like flour at all. The key is to cook the flour and milk mixture until it bubbles and thickens, which toasts the flour proteins and removes the raw grain taste. The final result tastes remarkably similar to a high-end whipped cream or the filling of a snack cake.