What is the primary culinary role of Yellow/Spanish onions due to their cooked flavor profile?

Answer

Offering a rich, sweet base for savory dishes like stews.

Yellow onions, often considered the workhorses of the kitchen and sometimes known as Spanish onions when large and firm, develop a significantly mellowed, sweeter flavor profile once subjected to cooking processes like roasting or slow simmering in sauces and stews. Although they possess a more pungent flavor when eaten raw, their ability to break down into a rich, sweet foundation during extended heating makes them the preferred choice for building depth in savory cooked meals. This versatility in cooking, where the heat transforms their harshness into sweetness, defines their primary culinary utility, contrasting with the raw applications favored by red and white varieties.

What is the primary culinary role of Yellow/Spanish onions due to their cooked flavor profile?
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