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Kinds of Icing

A friendly breakdown of the most common icings and what each one is best at, plus a simple buttercream you can spin into tons of easy variations.

Author By Matt Campbell
4.8
A bowl of fluffy vanilla buttercream on a kitchen counter with a spatula and cupcakes nearby

Icing is basically dessert’s outfit. Sometimes you need a cozy hoodie situation (a thick swipe of buttercream). Sometimes you need a sleek black-tie moment (a shiny ganache drip). And sometimes you need an icing that dries like a tiny suit of armor (hello, royal icing).

This guide walks through the most useful kinds of icing, what they taste like, how they behave, and when to pick each one. Then I’ll give you my go-to easy vanilla buttercream that you can customize into chocolate, citrus, cozy spice, coffee, and all kinds of other flavors.

Powdered sugar, butter, vanilla extract, and milk measured on a kitchen counter ready for frosting

Why It Works

  • You will know what icing to use for cupcakes, layer cakes, sugar cookies, cinnamon rolls, and quick sheet cakes.
  • You will get predictable texture: spreadable, pipeable, drizzleable, or set-firm depending on the job.
  • You will learn quick fixes for common problems like grainy buttercream, air bubbles, runny glaze, and broken ganache.
  • You will have one base recipe that adapts fast, using accessible ingredients.

Pairs Well With

Storage Tips

Buttercream: Store in an airtight container in the fridge up to 1 week for best quality (keep it tightly covered so it does not pick up fridge odors). Let it sit at room temp 30 to 60 minutes, then re-whip for fluff. Freeze up to 2 months and thaw overnight in the fridge.

Cream cheese frosting: Refrigerate up to 5 days. Bring slightly toward room temp and re-stir before using. Keep finished frosted items chilled if your kitchen runs warm.

Royal icing: If made with meringue powder or pasteurized egg whites, keep in an airtight container with plastic wrap pressed directly on the surface up to 1 week in the fridge. Let it come back to room temp and re-mix gently. Avoid whipping in lots of air bubbles. For short holds during decorating, room temperature is fine as long as it is covered well and you are working in a cool, clean kitchen.

Ganache: Refrigerate up to 1 week. Rewarm gently in short microwave bursts or over a warm water bath, stirring often. If it splits, re-emulsify with warm cream a teaspoon at a time (see FAQ).

Glaze: Store covered at room temp for 1 day or refrigerate up to 3 days. Whisk before using and add a tiny splash of milk if it thickens.

Common Questions

What are the main kinds of icing?

The big ones you will see most often are buttercream (American, Swiss meringue, Italian meringue, French), cream cheese frosting, royal icing, glaze (powdered sugar icing), ganache, whipped cream frosting, boiled frosting (like seven-minute frosting), and fondant.

Sugar cookies decorated with smooth royal icing on a parchment-lined baking sheet

Which icing is best for decorating cookies?

Royal icing is the classic for crisp, clean cookie designs because it sets firm. For a softer bite and simpler decorating, you can also use a thicker glaze, but it will not dry as hard.

What royal icing consistency do I need (outline vs flood)?

Think of it like this: outline icing should hold a line without spreading (thicker), and flood icing should settle into a smooth layer after a few seconds (thinner). Add water a few drops at a time until you get the behavior you want. Small changes make a big difference, so go slow.

Which icing is best for cupcakes?

For tall swirls and easy piping, go with American buttercream. If you want something lighter and less sweet, try Swiss meringue buttercream or stabilized whipped cream.

Why is my buttercream grainy?

Most of the time it is powdered sugar clumps or butter that was too cold. Sift the powdered sugar next time, and whip longer. If it still feels grainy, let the frosting rest 10 minutes, then whip again so the sugar can fully hydrate.

How do I get rid of buttercream air bubbles?

If your buttercream looks pocked or bubbly, beat it on low for 1 to 2 minutes to push out big air pockets (high speed adds air). You can also press and stir it against the side of the bowl with a spatula to knock bubbles out before piping.

How do I thicken icing that is too runny?

Add more powdered sugar a little at a time, or chill the bowl for 10 to 15 minutes and re-whip. For glazes, just whisk in more powdered sugar. For cream cheese frosting, chilling helps more than adding a ton of sugar.

How do I fix broken ganache?

If ganache looks oily or separated, warm it gently until it is fluid, then whisk or blend (immersion blender works great). Add warm cream or milk starting with 1 teaspoon at a time until it comes back together, scaling up as needed for a larger batch. If you keep fighting separation, a small spoonful of corn syrup or glucose can help it re-emulsify and stay glossy.

What is the difference between frosting and icing?

In everyday baking language, frosting is usually thicker and spreadable (like buttercream), while icing often means a thinner mixture that can be poured or drizzled and may set (like a powdered sugar glaze). People use the words interchangeably, so do not stress it.

Which icings need refrigeration?

Cream cheese frosting and most whipped cream frostings should be refrigerated. Buttercream is usually fine at cool room temp for a day or two, but in hot kitchens it is safer chilled. When in doubt, refrigerate and let the dessert sit 20 to 30 minutes before serving for best texture.

Are icings with eggs safe?

For icings that use egg whites (like royal icing and some buttercreams), the simplest safety move is to use meringue powder or pasteurized egg whites. Swiss and Italian meringue buttercreams involve heating (Swiss) or hot sugar syrup (Italian), which helps, but if you are serving kids, pregnant guests, or anyone immunocompromised, pasteurized egg products are still the easiest peace-of-mind option.

I used to think icing was just sugar and vibes until I started paying attention to what each type actually does. One week I tried to frost cupcakes with a thin glaze because I was feeling lazy. It looked like the cupcakes had been caught in a sweet little rainstorm. Delicious, yes. Structurally, absolutely not.

Now I keep it simple: pick the icing based on the job. Want swoops and swirls? Buttercream. Want a shiny drip? Ganache. Want cookies that stack like a dream? Royal icing. Once you match the icing to the moment, the whole baking thing gets way more fun and way less dramatic.