The chef uses a blowtorch to caramelize the sugar on the dessert.
Tips
memory
喷 ('to spray, gush') + 枪 ('gun') - gun-shaped tool that sprays. The 枪 character covers 'spear' historically and 'gun' in modern Chinese; here it's the modern gun-shape sense. Same pattern: 水枪 (water gun), 胶枪 (glue gun), 漆枪 (paint gun).
