For serving liquid dessert or shrimp cocktail at lunch or dinner, which cup is used?

The sherbet cup is specifically designed for serving cold desserts like sherbet or liquid desserts, making it the most suitable choice for serving shrimp cocktail as well. Its broader, shallow bowl allows easy access to the contents and enhances presentation, ideal for products that are meant to be served chilled. The construction of a sherbet cup typically provides stability, which is important for maintaining the elegance of the dish when served.

In contrast, the custard cup, while also used for dessert, is generally deeper and may not be as visually appealing for a dish like shrimp cocktail. The demitasse cup and espresso cup are primarily intended for serving smaller quantities of coffee or espresso, making them inappropriate for serving larger or more liquid-based dishes. The sherbet cup stands out due to its design and intended use, aligning perfectly with the needs of serving such items at a meal.