also: ウエハース
noun
A thin, crisp, often sweet biscuit, commonly used in confectionery. Loanword from English 'wafers'.
from English wafers
チョコレートの間にウェハースが挟まっているお菓子が好きです。
I like sweets that have a wafer sandwiched between chocolate.
I served the ice cream with a wafer on the side.