Possible Clues:

• Alternative to tartar sauce
• Suffer onset of indigestion, having gobbled duck and garlic sauce
• Lay it on regularly -- essentially garlicky sauce
• Mayonnaise has excellent mixture of oil
• Mayonnaise seasoned with mayonnaise
• Superb oil produced for this dressing?
• Creamy, savory spread
• Pungent fish garnish
• Trouble swallowing egg with one kind of mayonnaise
• A bit of loin served regularly with mayonnaise