This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. A sauce consisting of usually fresh basil, garlic, pine nuts, olive oil, and grated cheese.

n. A sauce, especially for pasta, originating from the Genoa region, made from basil, garlic, pine nuts, olive oil and cheese (usually Pecorino)

n. A sauce used in Italian cuisine, typically made by blending olive oil, basil, garlic, pine nuts, and grated parmesan cheese; it is served hot or cold over pasta, meat, or fish. Where pine nuts are expensive, sunflower seeds are sometimes substituted.

n. a sauce typically served with pasta; contains crushed basil leaves and garlic and pine nuts and Parmesan cheese in olive oil

"Add a quarter pound of lardo, and mash ingredients together until pesto is smooth."

sauce   

aioli    meatloaf    coleslaw    risotto    vinaigrette    arugula    compote    lasagna    low-sodium    mayonnaise