[header] How to make fishball sauce (street style ) [title] Make a cornstarch slurry. [step] Place 3 tablespoons of water and 3 tablespoons of cornstarch in a small bowl. Use a fork, spoon or small whisk to completely combine the water and cornstarch. 
The slurry will appear thin and white. [substeps] The cornstarch will help your sauce thicken and the slurry will prevent the sauce from becoming lumpy as it cooks.