used when showing to other people something that you have just made or got and are pleased with

Corn tortillas can be cut into strips, fried until golden, and sprinkled with salt - voilà! tortilla chips. 玉米粉圆饼可以切成长条，炸至金黄色，再撒上些盐——瞧，这就是墨西哥炸玉米条。