Char the Eggplants:
Place whole eggplants directly over flame of gas burner or on very hot grill over direct heat
Turn eggplants occasionally with tongs, allowing each side to become completely blackened and charred
Continue until skin is thoroughly charred all over, flesh feels soft when pressed, and eggplant has deflated from original shape
This typically takes 8-12 minutes per eggplant depending on size
Work in batches if burner cannot accommodate all eggplants at once
Steam and Set Aside:
Transfer each charred eggplant immediately to large bowl
Once all eggplants are in bowl, cover tightly with plastic wrap
Set aside for 10-15 minutes (trapped steam loosens charred skin for easier peeling)
Toast the Cashews:
While eggplants steam, place raw cashews in dry skillet over medium heat
Toast, stirring frequently, for 4-5 minutes until cashews are fragrant and light golden-brown
Transfer immediately to plate and set aside
Render the Bacon:
In large, heavy-bottomed soup pot or Dutch oven over medium heat, add cut bacon pieces
Cook, stirring occasionally, until bacon is crispy, golden, and has rendered most of its fat (6-8 minutes)
Use slotted spoon to remove crispy bacon pieces and set aside on paper towel-lined plate
Leave rendered bacon fat in pot (this is cooking medium for onion and garlic)
Peel and Mince the Eggplants:
Once eggplants have steamed and are cool enough to handle, peel charred skin away (should come off in large pieces)
Discard skin
Place peeled eggplant flesh on cutting board
Mince into rough, coarse paste (some texture is fine as everything will be blended smooth later)
Sauté Onion and Garlic:
Return to pot with rendered bacon fat over medium heat
Add chopped white onion
Cook for 5-6 minutes, stirring regularly, until softened and translucent
Add chopped garlic
Cook for another 2 minutes until fragrant and slightly softened (do not allow to brown)
Add Eggplant, Cashews, and Stock:
Add minced eggplant flesh to pot with sautéed onion and garlic
Add toasted cashews
Add enough chicken stock to cover mixture and create soup consistency (start with 3 cups, add more as needed)
Season with fish sauce and black pepper
Stir everything together and bring to gentle simmer
Cook for 5-7 minutes to allow flavors to come together
Blend Until Smooth:
Transfer soup mixture in batches to high-powered blender
Fill blender no more than half full per batch
Hold lid firmly with folded kitchen towel
Blend each batch on high speed for 60-90 seconds until completely smooth
Be careful with hot liquids
Alternative: use immersion blender directly in pot for slightly less smooth but more convenient result
Return blended soup to pot
Stir in Cream and Serve:
Place pot over low heat
Add cooking cream or heavy whipping cream
Stir until fully incorporated
Taste and adjust seasoning (add more fish sauce for umami, more pepper for heat, or splash of cream if too intense)
Heat gently until soup is hot throughout
Garnish and Serve:
Ladle hot soup into serving bowls
Top each bowl with reserved crispy bacon pieces
Add generous scatter of freshly chopped flat-leaf parsley
Serve immediately
Critical Tips:
Char eggplants completely on all sides for proper smoky depth
Cover tightly with plastic wrap immediately after charring for steam to loosen skin
Toast cashews until genuinely golden for full flavor
Use rendered bacon fat for sautéing (carries smoky, salty flavor into base)
Blend in small batches and never overfill blender with hot liquid
Add cream at end over low heat to prevent separation
Serving Suggestions: Serve in wide, shallow bowls with toasted sourdough or crusty bread for dipping. For dinner party, serve in small cups as elegant amuse-bouche. Pair with simple green salad and warm dinner rolls for complete meal.