The primary ingredient in a traditional fritter is usually flour, which is mixed with other ingredients such as fruits, vegetables, or meats to form a batter. The batter is then deep-fried until crispy and golden brown. Fritters can be sweet or savory, depending on what is added to the flour mixture. Common variations include apple fritters, vegetable fritters, and corn fritters, each bringing a different flavor and texture to this versatile dish.