white sauce
US /waɪt sɔːs/
UK /waɪt sɔːs/

1.
salsa bianca, besciamella
a sauce made from butter, flour, and milk or cream, typically used as a base for other sauces or dishes
:
•
She prepared a creamy white sauce for the lasagna.
Ha preparato una cremosa salsa bianca per le lasagne.
•
The cauliflower was served with a rich white sauce.
Il cavolfiore è stato servito con una ricca salsa bianca.