For this hack, I limited the gels to two that are easy to find: unflavored gelatin and pectin. When these two ingredients are heated, then cooled, they form a gel similar to what’s in the real Dole Whip, and the result is a thick-and-creamy consistency. Another trick often used to help thicken sorbets is the use of viscous corn syrup to replace much of the sugar. Corn syrup will give the sorbet body and it helps tone down the acidic pineapple juice.