The Ratio To Know When Swapping Fresh Parsley For The Dried Variety - Tasting Table
Briefly

Unlike fresh parsley, which offers vibrant color and brightness, dried parsley is more concentrated in flavor and should be used earlier in cooking to meld with other ingredients.
When substituting dried for fresh parsley, follow the guideline of using ⅓ the amount of dried herbs to fresh, as their potency differs significantly.
Dried parsley works wonderfully in recipes like potato leek soup, where it can blend seamlessly with ingredients early in the cooking process, enhancing overall flavor.
Fresh parsley is best added towards the end of cooking or as a garnish, allowing its bright flavors to shine without losing potency.
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