Tareco is a traditional Brazilian biscuit originating from the Northeast region, particularly associated with states like Pernambuco, Paraíba, and Ceará. The biscuit is made primarily from wheat flour, sugar, butter (or margarine), and eggs. Some modern variations also include baking powder to make the texture lighter.

The exact origin date of tareco is unclear, but its roots are tied to the rural culture of the Brazilian Northeast. It has been popular since at least the early 20th century as an accessible and inexpensive food item. Wheat flour and sugar became more widespread in Brazil during the colonial and imperial periods, which contributed to the creation of simple baked goods like tareco.

Tarecos are characteristically small, round, and slightly flattened. They are firm and crunchy and may have a rustic appearance. Traditionally, tarecos are baked in wood-fired ovens, although home ovens are now commonly used.

The name "tareco" may originate from local slang meaning something of little value or utility, referencing the simplicity and humble origin of the biscuit. Tareco is often accompanied by coffee and is regarded as a comfort food in the Northeast. It is usually eaten at breakfast or as a snack.

Tareco has cultural importance in the region’s folklore and music. The biscuit was popularized nationally through the song "Tareco e Mariola," written and sung by Flávio José in 1996, which references tareco as a symbol of nostalgia and the rural way of life.

The recipe for tareco has remained largely unchanged, although local adaptations add coconut or cheese. Tareco continues to be sold at markets, fairs, and bakeries throughout the Brazilian Northeast.