What product is portioned using a 1.5 oz. ladle?

The correct answer is blueberry compote, as this product typically requires precise portioning to maintain consistency in flavor, texture, and presentation. Using a 1.5 oz. ladle ensures that each serving of the compote is uniform, which is important for customer satisfaction and adherence to IHOP's standard recipes.

Blueberry compote is often used as a topping for various menu items, and an accurate portion size helps in controlling food costs while delivering an appealing dish to customers. In contrast, items like maple syrup, whipped cream, and fruit salad don't require such standard measurements in the same way. Maple syrup is usually served in larger quantities according to customer preference, while whipped cream and fruit salad can be dispensed with a more casual approach as they are often enhanced to taste rather than measured strictly.