The cornstarch also acts as a stabilizer in the same way that emulsified egg yolks in a custardy French vanilla-style ice cream would — preventing the formation of large ice crystals ...

What separates French vanilla ice cream from plain vanilla has nothing to do with France. One ingredient makes the difference - find out here.

Following is a transcript of the video. Medha Imam: Portillo's is known across the country for its savory hot dogs and crispy french fries. But most Chicagoans know that Portillo's best-kept ...