Preparation

• To caramelize the onions, heat olive oil and butter in a large Dutch oven or soup pot over medium-high heat. Add onions; cook 4-5 minutes, stirring occasionally. Stir in salt. Reduce heat to low; cover. Cook until onions are soft, about 15 minutes, stirring occasionally. Remove the lid; cook another 20 minutes or until very soft and browned, stirring occasionally. Transfer to a small bowl; set aside.
• Preheat oven to 350°. Line a 15x10x1-in. baking sheet with aluminum foil or parchment paper. To make the bread crumbs, in a small bowl, combine panko, Parmesan and melted butter. Spread in an even layer on the prepared baking sheet. Bake 10-12 minutes, stirring once, until golden brown. Remove; let cool.
• To make the soup, add olive oil and butter to the same Dutch oven or soup pot over medium heat. Add celery and fennel; cook until softened and beginning to brown, 7-8 minutes. Add garlic; cook until fragrant, 30-60 seconds. Add white wine; bring to a simmer, scraping the browned bits up from the bottom until mostly dissolved, 1-2 minutes.
• Add caramelized onions, chicken stock, kale, ¾ cup crumbled bacon, soy sauce, salt, thyme and pepper to the pot; bring to a boil. Reduce the heat. Cover; simmer for 10-15 minutes.
• Remove lid; stir in shredded chicken and gnocchi. Simmer uncovered until gnocchi floats to the top, 2-3 minutes. Stir in shredded cheese. Place cream in a small bowl; add a small amount of hot soup broth to the bowl to temper it. Slowly pour the mixture into the soup, stirring constantly. Stir in cayenne pepper.
• In a small bowl, whisk together cornstarch and water. Stir into the soup; simmer until thickened, 2-3 minutes.
• Ladle soup into serving bowls. Top each with remaining crumbled bacon and Parmesan bread crumbs. Serve immediately.