What foundational slow-cooked mixture is often used to build depth in the sauce base for Patatas Bravas?

Answer

sofrito

The foundational flavor base for the sauce frequently involves a sofrito, which consists of onion, garlic, and tomato slowly sautéed in olive oil before final spices are added.

What foundational slow-cooked mixture is often used to build depth in the sauce base for Patatas Bravas?
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