Table 1. Formulation of onion cream soups added with different onion powders
| Sample | Water (mL) | Milk (mL) | Powder (g) | White roux (g) |
| Control | 20 | 20 | 0 | 10 |
| COP | 20 | 20 | 0.5 | 10 |
| OFP | 20 | 20 | 0.5 | 10 |
| OPP | 20 | 20 | 0.5 | 10 |
Control, cream soup without onion powder; COP, cream soup containing commercial onion powder; OFP, cream soup containing onion flesh powder; OPP, cream soup containing onion peel powder. Each sample contains 0.5 g of onion powder per batch, corresponding to approximately 1% (w/w) of the final formulation.