Frozen custard is a dessert very similar to an ice cream except that is made by adding Eggs, sugar and cream.It contains at least 10% milk fat and 1.4% egg yolk.
Yogurt, in simple terms, is the bacterial fermentation of milk which is often sweetened or flavored. Lactobacillus & Streptococcus are the vital bacteria's for the yogurt's thick texture and consistency.