A1 Sauce™
/ˌeɪ ˈwʌn sɔːs/
/ˌeɪ ˈwʌn sɔːs/
(abbreviation A1)
- a popular brand of spicy sauce which is sold in tall bottles and is eaten especially with meat. The sauce was first made in the UK in 1824 but it later became very popular in North America to accompany steak (= a large piece of good quality beef). Until 2014 it was called A1 Steak Sauce.