pinch

咖啡里只需要加一点点糖。

Just add a ___pinch of sugar to the coffee.

汤里只需要加一点点盐。

Just add a ___pinch of salt to the soup.

食谱上说需要加一小撮糖来平衡酸味。

The recipe calls for a ___pinch of sugar to balance the acidity.