Marshmallows are a sweet, fluffy confectionery made primarily from sugar, water, and gelatin. In the context of alcohol and cocktails, marshmallows can be used to add a playful, whimsical element to drinks. They are often toasted to provide a smoky flavor and a charred texture, which can complement the sweetness and complexity of various cocktails.

For instance, a toasted marshmallow can serve as a garnish for hot drinks like spiked hot chocolate, adding both visual appeal and a layer of roasted flavor. Additionally, marshmallow-infused syrups or marshmallow-flavored liqueurs can be incorporated into cocktails to impart a creamy, sweet taste that balances well with spirits such as vodka, rum, or bourbon. These applications make marshmallows a versatile and creative ingredient in the mixology world.