Wilton High Humidity Icing Zoom

High Humidity Icing Recipe

Summer's high humidity can make your icing and piped decorations wilt and droop. This recipe will help them stay fresh and pretty!
Makes: About 3 cups
Skill Level: None
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Step 1

In large bowl, beat shortening and butter with electric mixer until light and fluffy. Add vanilla; mix well. Gradually add sugar, one cup at a time, beating well on medium speed. Scrape sides and bottom of bowl often. When all sugar mixture has been mixed in, icing will appear dry.

Step 2

In small bowl, combine milk and whipped topping mix powder; stir well. Add to icing mixture; beat at medium speed until light and fluffy.

Step 3

Keep icing covered with damp cloth until ready to use. For best results, keep icing bowl in refrigerator when not in use. Refrigerated in an airtight container, this icing can be stored 2 weeks. Re-whip before using.

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5 teaspoons Whipped Icing Mix (or 3 tablespoons of cornstarch)


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solid vegetable shortening

1/2 cup solid vegetable shortening


1/2 cup (1 stick) butter (softened)

clear vanilla extract

1 teaspoon clear vanilla extract

confectioners' sugar

4 cups confectioners' sugar (sifted)


2 tablespoons milk

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High Humidity Icing is rated 4.6 out of 5 by 8.
Rated 5 out of 5 by from Amazing Decided to make this frosting and test it outside on this very Hot day. 92 degrees feels like 102. The frosting did an amazing job. after 35 minutes it looked like it did when I took it out, just a bit shiny though.
Date published: 2018-07-04
Rated 5 out of 5 by from Great icing Made a four tier wedding cake for my daughters wedding. The icing tastes devine and held up to the humidity perfectly.
Date published: 2018-03-21
Rated 5 out of 5 by from High Humidity Icing Recipe! I used this years ago for a wedding cake that I had to transport a long way to the reception. It turned out to be a savior! It was a hot, steamy summer. The cake stayed lovely. So today I am back to get the recipe again because that weather has returned.
Date published: 2017-07-01
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