What is ariabatta sauce?

There is no sauce known as "Ariabatta sauce." It's possible you might be thinking of a different sauce or misremembering the name.

It's helpful to provide more context. Can you remember:

* What kind of cuisine was it associated with? (Indian, Italian, etc.)

* What ingredients did it seem to have? (Spicy, creamy, tomato-based, etc.)

* What was it served with? (Pasta, rice, meat, etc.)

With more details, I can help you find the sauce you're looking for.