Low FODMAP Tuna Poke

Name: Low FODMAP Tuna Poke
Prep time: 20 min
Cook time: 20 min
Total time: 40 min
Cuisine: American, Asian
Ingredients: 2 cups (400 g) short-grain sushi rice; 2 cups (480 ml) plus 2 tablespoons water, (divided); Kosher salt; ¼ cup (60 ml) rice vinegar; 1 Persian cucumber, (about 6-inches/15 cm long, trimmed, scrubbed and thinly sliced crosswise); A few slices of fresh jalapeno (optional); 2 tablespoons lime juice; 2 tablespoons white wine or mirin; 2 tablespoons orange juice; 2 tablespoons low-sodium soy sauce; 4 ¼ ounces (120 g) firm, ripe avocado flesh, (cut into cubes); 1 pound (455 g) high-quality raw tuna, (cut into ½-inch (12 mm) pieces); 2 scallions, (green parts only, cut into thin slivers (see image)); 2 teaspoons sesame seeds