For even more umami, I add Chinese dried shrimp roe and fresh tobiko (flying fish) roe. This makes far more of the topping than you'll need for two servings; the leftovers keep for at least two ...

There's something disconcerting about finding an unexpected surprise in your food, but if you discover ... And if you're craving the subtlety of shrimp roe, but don't have immediate access to fresh ...