Also known as Blondies or Brookies, butterscotch brownies date back to the 19th century.

Made with flour, brown sugar, butter, eggs, baking powder, and vanilla, these brownies are often accented with walnuts, pecans, or butterscotch chips.

The earliest known recipe for a brownie appeared in 1896 and was actually for a molasses-flavored bar without chocolate, essentially a butterscotch brownie or blondie. The name "brownie" was inspired by the elfin characters featured in Palmer Cox’s popular publications of that era.

The butterscotch flavor originated in Doncaster, England, in the 19th century, created by confectioner Samuel Parkinson, who blended butter and brown sugar to make the now-famous sweet.

Butterscotch Brownie Day is primarily observed in the USA, where it is celebrated by baking, sharing, and enjoying butterscotch brownies, and participating in bake sales or cook-offs.