Citrus Salad with Ponzu Dressing

Ingredients

• 1 teaspoon grapefruit zest
• 2 tablespoons grapefruit juice
• 1 teaspoon orange zest
• ¼ cup orange juice
• 1 teaspoon sugar
• 1 tablespoon soy sauce
• 1 tablespoon sesame oil
• ½ teaspoon fresh ginger, minced
• 1 cup firm tofu, ½-inch dice
• ¾ teaspoon salt, divided
• 1 cup baby cucumbers, ½-inch slices
• ½ cup grapefruit segments
• ⅔ cup orange segments
• 1 cup fennel, shaved
• 2 tablespoons fennel fronds or fresh dill