Choose your substitute based on recipe type: raw (cocktails, dressings), cooked (roasts, marinades), or simple seasoning.
If using celery seed, mix with salt in the recommended ratios; grind the mixture finer for cocktail rims or dressings.
For DIY celery salt, grind celery seeds into a powder before combining with salt to ensure a uniform texture.
Adjust the amount of substitute to equal the amount of celery salt called for, and incorporate it into your dish or rim.
Taste and check the texture of the substitute in your recipe, grinding further if needed for smoothness and better adherence.