Which sauce is served with the Bloomin' Onion?

The sauce served with the Bloomin' Onion is the Creamy Horseradish Sauce. This sauce complements the crispy, fried onion's flavor by adding a zesty kick that harmonizes well with the savory notes of the onion. The creamy texture also balances the heat of the horseradish, making it a perfect dipping sauce that enhances the overall tasting experience of the appetizer.

The other sauces, while popular choices for different menu items, do not specifically accompany the Bloomin' Onion. Blue Cheese Dressing is often paired with buffalo wings, Ranch Dressing is commonly used with salads and other appetizers, and Barbecue Sauce is typically served with grilled or smoked meats. Each of these sauces has its unique flavor profile that would not provide the same complement to the Bloomin' Onion as the Creamy Horseradish Sauce does.