Whisk yogurt until smooth. Add dill, lemon juice and zest, black pepper, water, garlic powder, and salt.
Mix until herby and pale green-flecked. Rest 5 minutes; thin with water for salad jars.
Notes
Vegan swap — Thick coconut or cashew yogurt works well; dill flavour stays bright.Herb swap — Use fresh mint for a different aromatic if dill is unavailable.Make-ahead — 3–4 days refrigerated; stir before serving.Serving — Cucumber salads, cold millet bowls, and alongside cucumber raita on summer menus.