How to Prevent Your Icing From Turning Yellow (And Why it Happens!)

Icing can change color for a variety of reasons, but the most common culprit is butter. Traditional buttercream icing is made with, you guessed it, butter. Butter contains natural yellow pigments, and as the icing sits, these pigments can become more noticeable. This is especially true in warmer environments, where the butter softens and the color becomes more pronounced.

Another cause could be improper mixing. When ingredients aren’t evenly combined, the butter’s yellow hue might dominate in certain areas. Even exposure to light can be a factor, particularly with icings left out on display for extended periods.

Tips to Keep Your Icing White

Don’t let yellow icing ruin your cake masterpiece. Here are some handy tips to keep your icing looking as flawless as it tastes.

Swap Butter for Shortening

If you’re not tied to the flavor of butter, vegetable shortening can be a great alternative. It’s naturally white, helping your icing maintain a bright, clean appearance.

Add a Touch of White Food Coloring

White gel or liquid food coloring can counteract the natural yellow of butter. Add a few drops while mixing to neutralize any unwanted tints.

Keep it Cool

Heat can exacerbate yellowing. Store your icing in a cool place and avoid direct sunlight to help maintain its color.

Whip it Thoroughly

Properly aerating your icing can help lighten its appearance. Use a stand or hand mixer to ensure all ingredients are evenly blended and fluffy.

Can Your Ingredients Influence the Color?

Yes, the ingredients you choose can significantly affect the look of your icing. Butter is a key factor. European butter, known for its higher fat content, has a deeper yellow tone compared to standard options. Using lighter-colored or unsalted butter can help keep your icing closer to white.

Vanilla extract is another consideration. Traditional pure vanilla often has a natural brown tint, which may subtly alter the color of your icing. Instead, opt for clear vanilla extract to maintain a bright and consistent white shade. Careful ingredient selection is a simple way to prevent yellowing before it begins.

Is Yellow Icing Always a Problem?

Not necessarily. In fact, a soft yellow tint can add a touch of warmth and charm, especially for rustic or vintage-style bakes. If it’s not what you’re after, the tips above will help you achieve that flawless white finish. However, if you’re planning on bold colours for decorating, starting with pure white icing is essential for the best results.