SEVEN-MINUTE FROSTING FOR QUICK COCONUT LAYER CAKE

Steps:

• In a medium saucepan, bring 2 inches of water to a simmer.
• In a large heatproof mixing bowl, combine reserved egg whites, light corn syrup, cream of tartar, water, and sugar.
• Place bowl over simmering water (it should not touch water); with a handheld mixer, beat on high speed until stiff peaks form, about 7 minutes.
• Remove bowl from heat; beat 3 to 5 minutes more to cool. Use immediately.