A vodka infusion is a flavored liquor

Flavored liquor

Flavored liquors are alcoholic beverages that have added flavoring and, in some cases, a small amount of added sugar...

 that is created when vodka

Vodka

Vodka , is a distilled beverage. It is composed primarily of water and ethanol with traces of impurities and flavorings. Vodka is made by the distillation of fermented substances such as grains, potatoes, or sometimes fruits....

 is flavored with one or more flavorants. Vodka infusions may be homemade or they may be bought in liquor store

Liquor store

In the United States, Australia and Canada, a liquor store is a type of store that specializes in the sale of alcoholic beverages. In South Africa and Namibia these stores are generally called bottle stores....

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By definition, vodka infusions do not contain added sugar; such beverages are called liqueur

Liqueur

A liqueur is an alcoholic beverage that has been flavored with fruit, herbs, nuts, spices, flowers, or cream and bottled with added sugar. Liqueurs are typically quite sweet; they are usually not aged for long but may have resting periods during their production to allow flavors to marry.The...

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The flavoring agents

Flavor

Flavor or flavour is the sensory impression of a food or other substance, and is determined mainly by the chemical senses of taste and smell. The "trigeminal senses", which detect chemical irritants in the mouth and throat as well as temperature and texture, are also very important to the overall...

 are added to the vodka, which is left to steep

Steeping

Steeping or weltering may mean:# Saturation in a liquid solvent to extract a soluble ingredient, where the solvent is the desired product. Tea is prepared for drinking by steeping the leaves in heated water to release the flavor and nutrients...

 in a sealed container for a period of time. This period can range from hours to months depending on the ingredients.