Crispy Fried Tofu

Name: Crispy Fried Tofu
Ingredients: 1/2 cup mirin; 1/2 cup soy sauce; 1 1/2 teaspoons fresh lime juice; 1 1/2 teaspoons fresh clementine or orange juice; Two 14-ounce packages extra-firm tofu, drained well and cut into 8 rectangles each; 3 cups rice flour, for breading; 2 large eggs, for breading; 2 cups milk, for breading; 2 cups panko, for breading; Vegetable oil, for frying; Kosher salt; 2 tablespoons vegetable oil; 1 small onion, thinly sliced; 2 garlic cloves, sliced; 1/4 cup dark brown sugar; 5 black plums, thinly sliced; 1 tablespoon tamarind paste; 1 teaspoon Sriracha; Salt