Frozen custard, on the other hand, is made with milk, cream, sugar, and egg yolks -- 1.4% egg yolk by weight, to be specific, according to the U.S. Food and Drug Administration.

Like ice cream, the FDA says frozen custard must contain 10% milk fat, but it also has to be made with at least 1.4% egg yolk. Some ice creams also contain eggs, but it's not a requirement.

Whoever invented soft serve deserves a medal! This cloud-like treat practically danced onto my tongue, dissolving instantly ...

Like ice cream, the FDA says frozen custard must contain 10% milk fat, but it also has to be made with at least 1.4% egg yolk. Some ice creams also contain eggs, but it's not a requirement.

Frozen custard leans into indulgence with a velvety texture and rich flavor, while frozen yogurt brings a tangy, lighter profile that has been marketed as the healthier choice.