Which of the following is NOT one of the three orange liqueurs?

Peach Schnapps is not an orange liqueur. It is a flavored schnapps typically made with peaches and is used in various cocktails to add a sweet fruit flavor. In contrast, the other options — Blue Curacao, Grand Marnier, and Cointreau — are all liqueurs that have a prominent orange flavor.

Blue Curacao is made from the dried peel of the Laraha orange, which gives it a distinctive blue color and orange taste. Grand Marnier is a blend of Cognac and orange liqueur, which adds depth and richness to cocktails. Cointreau is a high-quality orange-flavored liqueur known for its versatility in mixing. Recognizing the profiles of these liqueurs helps understand their uses in cocktails and drinks, highlighting why Peach Schnapps stands out as the option that does not fit as an orange liqueur.