The main ingredient in cream cheese is milk, specifically cream. This rich, soft cheese is made by combining milk and cream, followed by the addition of lactic acid bacteria, which aids in fermentation and thickening. The mixture is then refined and often stabilized to achieve its characteristic smooth texture and mild flavor. Cream cheese is widely used in various dishes, from spreads on bagels to key ingredients in cheesecakes and frosting. Its creamy consistency makes it versatile in both savory and sweet recipes.