Pop-Tarts is a brand of toaster pastries that the Kellogg Company introduced in 1964. Pop-Tarts have a sugary filling sealed inside two layers of thin, rectangular pastry crust. Most varieties are also frosted. Although sold pre-cooked, they are designed to be warmed inside a toaster or microwave oven. They are usually sold in pairs inside Mylar (previously foil) packages and do not require refrigeration.
Pop-Tarts is Kellogg’s most popular brand to date in the United States, with millions of units sold each year. They are distributed mainly in the United States, but also in Canada, Finland, Ukraine, the United Kingdom, Ireland, and New Zealand. Pop-Tarts were discontinued in Australia in 2005 and brought back in 2014 with two flavors: Strawberry Sensation and Chocotastic.
Pop-Tarts are produced in dozens of flavors, plus various one-time, seasonal, and “limited edition” flavors that appear for a short time.