Equipment
Ingredients
cucumber-tomato relish
- 200 g english cucumber, diced into 5mm pieces
- 200 g cherry tomatoes, quartered
- 40 g red onion, finely diced
- 10 g fresh dill, finely chopped
- 20 ml extra virgin olive oil
- 15 ml lemon juice, freshly squeezed
- 3 g fine sea salt
- 1 g black pepper, freshly ground
creamy yogurt sauce
- 200 g plain greek yogurt, whole milk or 2 percent
- 1 garlic, finely grated
- 15 ml extra virgin olive oil
- 15 ml lemon juice, freshly squeezed
- 5 g fresh mint, finely chopped
- 2 g fine sea salt
grilled trout
- 4 rainbow trout fillets, skin-on, pin bones removed
- 15 ml olive oil
- 2 g lemon zest, finely grated
- 4 g fine sea salt
- 1 g black pepper, freshly ground
Nutrition (per serving)
Nutrition is estimated per serving. Nutrients without complete source data are omitted.
Full nutrition
- Calories
- 407 kcal
- Protein
- 41 g
- Carbohydrates
- 9 g
- Fat
- 22 g
- Fiber
- 2 g
- Zinc
- 1.1 mg
- Water
- 232 g
Sources: Aggregated Public Data, USDA FoodData Central
Method
Combine 200g diced English cucumber, 200g quartered cherry tomatoes, 40g diced red onion, 10g chopped fresh dill, 20ml extra virgin olive oil, 15ml lemon juice, 3g fine sea salt, and 1g black pepper in a medium mixing bowl, and stir until evenly coated.
In a small mixing bowl, whisk together 200g Greek yogurt, 1 grated garlic clove, 15ml extra virgin olive oil, 15ml lemon juice, 5g chopped fresh mint, and 2g fine sea salt until fully emulsified and smooth.
Scrape the grill grates clean with a grill brush, lightly oil the grates, and preheat the outdoor grill or cast-iron grill pan over medium-high heat to 220°C (428°F).
Pat both sides of the 4 rainbow trout fillets thoroughly dry using paper towels on a clean cutting board, then immediately discard the towels and wash hands to avoid cross-contamination.
Brush both sides of each trout fillet with 15ml olive oil using a pastry brush, then season flesh and skin evenly with 2g lemon zest, 4g fine sea salt, and 1g black pepper.
Lay the trout fillets skin-side down onto the hot grill grates at 220°C (428°F), close the grill lid, and cook undisturbed for 3 to 4 minutes.
Gently slide a fish spatula under each fillet, flip flesh-side down, and grill for 1 to 2 minutes until an instant-read digital food thermometer inserted horizontally into the thickest center registers 63°C (145°F).
Transfer the cooked trout fillets skin-side down to a clean platter and let them rest for 2 minutes at room temperature.
Spoon 60g of creamy yogurt sauce onto the center of each of the 4 serving plates, using the back of the spoon to spread it into an even circle, then place one grilled trout fillet atop the sauce.
Spoon approximately 120g of the cucumber-tomato relish across the top and side of each trout fillet, and serve immediately.
Chef's Notes
- Drying the skin thoroughly with paper towels is the most critical step for achieving a crisp texture without sticking.
- A flexible, thin-edged fish spatula is the best tool for slipping under delicate trout skin without shredding the tender flesh.
- Full-fat Greek yogurt provides the necessary richness and body to anchor the dish and balance the acidity of the lemon and tomatoes.
- Leaving the pin-bone-free skin intact protects the delicate trout flesh from direct heat flare-ups and keeps the fillet intact during grilling.
Storage
Refrigerator: 2 days — Store trout, relish, and yogurt sauce in separate airtight containers. Refrigerate promptly within 2 hours of preparation.
Reheating: Reheat leftover trout gently in a skillet or preheated oven at 150°C (300°F) until the internal temperature reaches 74°C (165°F). Serve leftover relish and yogurt sauce cold or at room temperature.
Troubleshooting
Trout skin sticks aggressively to the grill grates and tears when flipped
Cause: The grates were insufficiently preheated or cleaned, the skin was damp before cooking, or the fillet was flipped prematurely
Fix: Slide a thin, flexible fish spatula firmly against the grate to coax the skin free; if the skin remains stuck, slide the spatula between the skin and flesh, leaving the skin on the grill to clean later
Prevention: Thoroughly preheat the grill to 220°C (428°F), scrub and oil grates well, pat skin bone-dry, and allow the skin to cook undisturbed for at least 3 minutes until it releases on its own
Cucumber-tomato relish turns watery and pools around the plate
Cause: Salt drew water out of the diced cucumbers and tomatoes because the relish sat too long before service
Fix: Use a slotted spoon when dishing out the relish to drain off excess accumulated liquid before plating
Prevention: Dice the vegetables in advance if needed, but toss with salt, oil, and lemon juice no more than 10 to 15 minutes before plating
Trout flesh is dry and chalky
Cause: The fish was cooked beyond the safe minimum internal temperature of 63°C (145°F)
Fix: Spoon extra creamy yogurt sauce and relish juices directly over the flesh to restore moisture and rich mouthfeel
Prevention: Check the core temperature with an instant-read digital food thermometer at the 4-minute mark and remove promptly at 63°C (145°F)
Cultural Context
Freshwater trout has a storied culinary heritage across mountain streams and river valleys of the Mediterranean basin, where cooks routinely grill daily catches over hardwood embers. Pairing charcoal-seared oily fish with cool strained yogurt sauces and finely diced summer vegetable salads is a classic technique across Greek, Turkish, and Balkan coastal cookery designed to cut through rich fish oils with bright acid and garden crunch.
