Ganache: Chocolate Emulsion Fundamentals

Ganache as a term and technique was codified in French pâtisserie in the 19th century, though chocolate-cream combinations existed earlier. The word itself is disputed in origin. What is not disputed is the technique's centrality to modern chocolate work — ganache is the foundation of truffles, bonbon centres, cake glazes, and tart fillings, each requiring a different ratio and therefore a different emulsion structure.

An emulsion of chocolate and cream (and sometimes butter) where the fat from both the cocoa butter and the cream must be suspended in a stable matrix. The ratio of chocolate to cream determines the final texture: high chocolate ratios produce firm, sliceable ganache; high cream ratios produce pourable, flowing ganache. Both require the same emulsification principle — thorough dispersion of fat droplets through the aqueous phase.

• Japanese nama chocolate (higher cream ratio, softer set), Belgian praline filling, Italian cremino (layered ganache variations)

Ganache is the purest expression of chocolate — the quality of the chocolate determines everything. High-percentage dark chocolate produces intensity and bitterness requiring sweet counterpoint; milk chocolate produces sweetness requiring acid or salt contrast; white chocolate produces dairy richness requiring citrus or berry contrast. Salt added at the end (fleur de sel, never table salt) sharpens every note.