Step 1

Melt together the butter and onions in a large Dutch oven over medium-high heat. Cook, stirring occasionally until softened, about 10 minutes. Add the wine, 1/4 cup at a time, until the wine cooks into the onions. Continue to cook another 10-15 minutes until you've used all of the wine and the onions are deeply caramelized.Add the garlic, mushrooms, thyme, and sage. Season with salt and pepper, cook another 3-4 minutes. Add the broth, parmesan rind, and a pinch each of salt and pepper. Increase the heat to medium-high and return the soup to a simmer, simmer 10 minutes, then stir in the cream and tortellini. Cook another 3-5 minutes. Remove the parmesan rind and discard. Season to taste with salt and pepper.Meanwhile, preheat the oven to 400° F. Arrange the bread on a baking sheet and toast for 10-15 minutes, until very dry. Switch the oven to broil.Ladle the soup into oven safe bowls. Add a slice of bread to each, and top evenly with cheese. Add rosemary, or thyme if desired. Place each soup bowl on a baking sheet and transfer to the oven, broil until bubbly and golden brown, 3 to 5 minutes. Eat!

Step 2

Melt together the butter and onions in a large Dutch oven over medium-high heat. Cook, stirring occasionally until softened, about 10 minutes. Add the wine, 1/4 cup at a time, until the wine cooks into the onions. Continue to cook another 5 minutes. Remove from the heat and add the onions to the crockpot bowl.To the crockpot, add the garlic, mushrooms, thyme, and sage. Add the broth, parmesan rind, and a pinch each of salt and pepper. Cover and cook on low for 5-6 hours or on high for 2-3 hours. During the last 15 minutes of cooking, stir in the cream and tortellini.Meanwhile, preheat the oven to 400° F. Arrange the bread on a baking sheet and toast for 10-15 minutes, until very dry. Switch the oven to broil.Ladle the soup into oven safe bowls. Add a slice of bread to each, and top evenly with cheese. Add rosemary, or thyme if desired. Place each soup bowl on a baking sheet and transfer to the oven, broil until bubbly and golden brown, 3 to 5 minutes. Eat!