Make the candied walnuts: In a saucepan, combine 1 cup water, ¼ cup granulated sugar, and ¼ cup brown sugar. Bring to a boil and add 1 cup walnuts. Simmer for 10 minutes, then drain and spread on a baking sheet to cool.
Make the honey sauce: In a small bowl, whisk together ⅓ cup mayo, 3 tbsp honey, ½ tbsp sweetened condensed milk, ½ lemon squeezed, and ¼ tsp salt.
Prepare the fried shrimp: Season the shrimp with salt and pepper. In a shallow bowl, mix ½ cup seltzer water, ¼ cup flour, and ¼ cup corn starch. Heat 3 cups of oil in a pan and fry the shrimp until golden brown, about 2-3 minutes per side.
Assemble the dish: Toss the fried shrimp with the honey sauce. Garnish with the candied walnuts and green onions.
