What two primary ingredients usually form the base of the famously complex Francesinha sauce?
Answer
Tomatoes and beer.
The complex flavor profile of the Francesinha sauce is generally built upon a specific foundation of liquid ingredients that provide its savory depth. This base mixture typically comprises tomatoes, which contribute acidity and necessary body, and beer, which imparts a distinct malty quality to the savory liquid. This combination is then subjected to slow simmering, often with various spices, to develop the deep umami character that varies significantly across different establishments.

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