Lapis Surabaya is Indonesia's most technically demanding layer cake — not to be confused with the ceremonial lapis legit (spiced thousand-layer cake documented in previous batches), which has entirely different Dutch colonial origins. Lapis Surabaya is an Indonesian Peranakan creation: three thick layers of rich, egg-yolk-dense butter sponge — two yellow (vanilla) and one chocolate (cocoa) — sandwiched with a specific strawberry jam (the traditional version insists on jam, not buttercream) and stacked in a yellow-chocolate-yellow format. The signature is the egg-yolk volume: benchmark lapis Surabaya uses 20–30 egg yolks per cake, producing a colour (intense golden yellow, almost orange), a density, and a richness that is essentially a butter and egg composition held in cake form.
Lapis Surabaya — Three-Layer Butter Cake, Indonesian Patisserie at Its Height
Indonesian Deep Extraction — Batch 14