sipuleista
Sipuleista is the elative plural form of the Finnish noun sipuli (onion). In Finnish, the elative case expresses source, origin, or material, and the plural elative is formed with the suffix -ista/-istä, yielding sipuleista for onions.
In use, sipuleista denotes onions as the source or material of something. For example, sipuleista valmistettu
The term appears in phrases that describe substances, dishes, or products derived from onions, such as sauces,