American-Style Persian Chilled Cucumber Yogurt Soup
This refreshing dish, known classically in Persian cuisine as Ab-Doogh-Khiar, combines cold yogurt, crisp cucumbers, aromatic fresh summer herbs, crunchy toasted nuts, and sweet golden raisins. Adapted for the American home kitchen using readily available grocery store ingredients, this balance of savory, sweet, tangy, and herbal flavors requires zero cooking beyond light nut-toasting.
Prep Time: 20 minutes
Cook Time: 5 minutes (for toasting nuts)
Chilling Time: 1 hour
Total Time: 1 hour 25 minutes
Yield: 4 to 6 servings
Equipment Needed:
Large glass or ceramic mixing bowl
Whisk
Chef’s knife and cutting board
Small skillet
Measuring cups and spoons
Ladle
Soup bowls for serving
Ingredients
Base Ingredients:
2 cups whole milk plain yogurt (Note: Standard unflavored yogurt works best; avoid Greek yogurt to maintain the correct traditional consistency)
1 1/2 cups ice water (Filtered cold water with a few ice cubes)
Fresh Produce & Herbs
1 large Persian cucumber or English cucumber (Unpeeled, finely diced, reserving a few slices for garnish)
1 cup total fresh herbs, finely chopped (A combination of fresh flat-leaf parsley, fresh basil, fresh dill, and fresh mint)
Add-Ins & Seasoning
1/2 cup raw walnuts, finely chopped
1/2 cup golden raisins
3/4 teaspoon ground sumac (Plus additional sumac for sprinkling over bowls before serving)
1 teaspoon Kosher salt (Adjust to taste)
1/4 teaspoon freshly ground black pepper (Optional)
Optional Serving & Garnish Ideas:
1 cup crushed pita chips, lavash, or pita bread
Edible dried rose petals (Traditional garnish)
Drizzle of extra virgin olive oil
Step-by-Step Instructions:
Step 1: Toast the Walnuts
Place a small dry skillet over medium-low heat on your stove.
Add the 1/2 cup raw walnuts to the pan in a single layer.
Toast for 5 to 7 minutes, stirring or shaking the pan frequently to prevent scorching. The nuts are ready when they turn lightly golden brown and release a warm, nutty aroma.
Immediately transfer the walnuts from the hot pan onto a plate or cutting board so they stop cooking.
Allow them to cool completely (about 5 minutes), then chop them finely.
Step 2: Prep the Cucumbers and Herbs
Wash the Persian or English cucumber thoroughly. Keep the thin skin on for color and extra texture.
Cut 3 to 4 paper-thin slices off the end of the cucumber and set them aside to use as a garnish later.
Finely dice the rest of the cucumber into tiny pieces (roughly 1/4-inch or smaller). If using a large English cucumber with excessive water or seeds, scrape the seed core out with a spoon before dicing.
Wash and thoroughly dry the fresh parsley, basil, dill, and mint. Remove any heavy stems.
Finely chop the mixed herbs until you have 1 full cup of tightly packed herb mix.
Step 3: Mix the Yogurt Base
In a large mixing or glass serving bowl, add 2 cups whole milk plain yogurt.
Measure 1 1/2 cups ice water (strain out large ice cubes before pouring).
Slowly pour the cold water into the yogurt while whisking vigorously. Continue whisking until the mixture is fully smooth, fluid, and free of yogurt lumps.
Step 4: Combine All Ingredients
Add the finely diced cucumbers into the yogurt base.
Fold in the 1 cup chopped fresh herbs, the 1/2 cup golden raisins, and the cooled, chopped toasted walnuts.
Season the soup base with 3/4 teaspoon ground sumac, 1 teaspoon Kosher salt, and optional black pepper.
Stir with a spoon or spatula until all ingredients are evenly distributed throughout the liquid.
Step 5: Chill for Maximum Flavor
Cover the bowl tightly with plastic wrap or a lid.
Place the bowl in the refrigerator for at least 1 hour (up to 4 hours is ideal).
Why chilling matters: This rest period allows the golden raisins to absorb liquid, swell up, and release natural sweetness into the soup while letting the herb oils infuse the yogurt mixture.
Step 6: Garnish and Serve
Remove the bowl from the refrigerator and give the mixture a gentle stir. Taste and adjust salt or sumac if needed.
Ladle the cold soup evenly into chilled individual serving bowls.
Garnish each bowl with reserved cucumber slices, a generous pinch of sumac, extra fresh herb leaves, and optional crushed pita chips or dried rose petals right before eating.
Flavor Profile & Culinary Context
Tangy & Creamy:
Whole milk plain yogurt creates a smooth, cool, and slightly tangy base for the dish.
Crisp & Refreshing:
Fresh cucumber adds a juicy crunch and keeps the dish light and refreshing.
Earthy & Warm:
Toasted walnuts bring a rich texture, nutty flavor, and healthy fats.
Sweet Contrast:
Golden raisins add a gentle sweetness that balances the tanginess of yogurt and sumac.
Aromatic Brightness:
Fresh dill, mint, parsley, and basil add fresh herbal flavors, color, and a vibrant taste.
Citrusy Zing:
Ground sumac gives a bright, lemony tart flavor without adding extra liquid.
Pro-Tips for American Home Cooks
Yogurt Selection: Traditional Persian recipes use fluid whole-milk yogurt or homemade doogh. If you only have Greek yogurt on hand, add an additional 1/2 cup of cold water or club soda to thin out its dense texture to a pourable soup consistency.
Textural Crunch: If you prefer your bread to stay crisp, serve pita chips or toasted naan on the side. If you prefer traditional Persian style, crumble pita bread directly into the bottom of the bowl before ladling the cold soup over top so it absorbs the flavors like a cold bread salad.
Make-Ahead Instructions: You can prepare the prepped ingredients up to 24 hours in advance. Keep chopped herbs, nuts, and cucumbers stored in separate airtight containers in the fridge, then whisk the yogurt base and combine everything 1 to 2 hours before serving to maintain maximum fresh crunch.
Storage & Leftovers
Refrigeration: Store leftover cold soup in an airtight container in the refrigerator for up to 2 days. Give it a quick stir before serving, as natural separation may occur as it sits.
Freezing: Do not freeze this dish; dairy-based soups containing high-moisture fresh vegetables break down and separate when thawed.