What is
Soured milk is a food product, distinguished from spoiled milk, and is a general term for milk that has acquired a tart taste, either through the addition of an acid, such as lemon juice or vinegar, or through bacterial fermentation.
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.