Vegan Banh Mi-Style Sandwiches With Tempura Sweet Potato and Avocado Recipe

Ingredients (14)

• 1 1/2 quarts vegetable, peanut, or canola oil
• 1/2 cup all-purpose flour
• 1/4 cup cornstarch
• Kosher salt
• 3/4 cup ice cold seltzer water (See note)
• 1 sweet potato, cut in half lengthwise, then cut into 1/4 to 1/8-inch planks
• 4 Vietnamese-style baguettes, or four soft hoagie rolls
• 2 teaspoons liquid aminos, such as Maggi or Bragg's
• 1 avocado, thinly sliced
• 1 recipe Hainnanese Ginger-Scallion Oil
• 1 recipe Vietnamese Pickled Carrots and Daikon (do chua)
• 1 cucumber, seeds removed, split lengthwise into 8 spears
• 1 jalapeño pepper, seeds and stem removed, sliced into thin spears
• 1 bunch cilantro leaves and fine stems