In the United States, the term “pigs in a blanket” typically refers to hot dogs in croissant dough, but may include Vienna sausages, cocktail or breakfast/link sausages baked inside biscuit dough or croissant dough. American cookbooks from the 1800s have recipes for “little pigs in blankets”, but this is a rather different dish of oysters rolled in bacon. The modern version can be traced back to at least 1940, when a US Army cookbook lists “Pork Sausage Links (Pigs) in Blankets”.
The dough is sometimes homemade, but canned dough is most common. Pancake dough is also sometimes used, although this combination is more commonly served like a corn dog and sold as a pancake on a stick. The larger variety is served as a quick and easy main course or a light meal (particularly for children) at lunch or supper while the smaller version is served as an appetizer. In Texas, kolaches or klobasneks are a similar dish which originates from Czech immigrants. The meat or savory part, often a sausage but not always, is wrapped in kolache dough and not croissant dough. This dish in Texas is most commonly referred to as “kolaches”. Traditional Czech style kolaches however are a sweet dish and not a savory dish.
They are also sold in the US as “franks in a blanket” or “franks in blanks”
Try this recipe from Pillsbury!