As a seasoned culinary expert with years of experience in French-inspired recipes, I've refined this classic tuna tartare from REGA Magazine. Start by combining olive oil, Sherry vinegar, Tabasco, pastis, and minced garlic in a bowl. Season with salt and pepper, then whisk until emulsified into a silky dressing.
Finely dice the tuna, tomatoes, and olives; place each in separate bowls. Peel the cucumber, halve lengthwise, remove seeds, and dice finely.
Marinate the tuna and vegetables separately in the emulsion for at least 1 hour in the refrigerator. Before serving, artfully toss on plates or layer in clear glasses for a stunning presentation.
Source: REGA Magazine
Pro Tip from Chef Hubert: For a versatile olive salpicon to garnish cold meat or fish starters, mix equal parts pitted black and green olives (brunoise), diced tomatoes, optional red pepper brunoise, finely chopped chervil and chives, extra-virgin olive oil, fleur de sel, and ground pepper.