|Alternative names||Caramel shortcake, Caramel squares, Caramel slice, Millionaire's shortbread, Millionaire's slice|
|Main ingredients||Shortbread, caramel, milk chocolate|
Caramel shortbread, also known as caramel shortcake, caramel squares, caramel slice, millionaire's shortbread, and millionaire's slice, is a biscuit confectionery item composed of a crunchy and rich rectangular shortbread biscuit base topped with a chewy and soft caramel filling and a shiny milk chocolate topping.
The shortbread gets its texture from butter, while condensed milk gives a creamy caramel filling, and good quality chocolate is the base for a soft, rich topping. Additional ingredients and occasional add-ins may be incorporated, such as ground almonds or semolina flour. Prepared in stages, with the cookie-like shortbread base baked first, followed by the chewy caramel and decadent chocolate. 
Some of the first known recipes and references are in Australian journals and cookbooks from the 1970s, most notably in The Australian Women's Weekly, where it is known as "caramel slice". An alternative name "millionaire's shortbread" of this decadent confection seems to have originated in Scotland. Highlighting just how popular this confection has become outside of Australia and Britain, the dessert was featured in a 2018 episode of America's Test Kitchen, accompanied by a recipe.
The name millionaire shortbread comes from the rich variety of ingredients included in these patisseries, although different countries have their own variety of shortbread and use other names such as caramel slice in Australia and caramel shortcake in North America.
- "Easy millionaire's shortbread". BBC Good Food. Retrieved 2018-10-05.
- "What Is Millionaire Shortbread? (with pictures)". wiseGEEK. Retrieved 2018-10-07.
- History of Caramel Squares. "Foods of England". Retrieved 24 February 2013.
- "The Australian Women's Weekly". Retrieved 24 February 2013.
- Cloake, Felicity (2016-07-28). "How to make the perfect millionaire's shortbread". the Guardian. Retrieved 2018-10-05.
- "Millionaire's Shortbread". www.americastestkitchen.com. Retrieved 2018-10-05.(subscription required)}
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