01 - Place whole red bell peppers on a baking sheet and broil or roast at 450°F until skins are charred, turning occasionally (about 15 minutes). Transfer to a bowl, cover, and let steam for 10 minutes. Peel off skins, remove seeds, and chop the flesh.
02 - In a large pot, melt the butter over medium heat. Add the onions and cook until translucent, about 5 minutes. Add garlic and cook for another minute.
03 - Add the chopped roasted red peppers, smoked paprika, salt, pepper, and cayenne (if using). Stir to combine thoroughly.
04 - Pour in the vegetable broth. Bring to a boil, then reduce heat and simmer for 15 minutes to develop flavors.
05 - Use an immersion blender to puree the soup until completely smooth, or transfer to a standard blender in batches careful with hot liquids.
06 - Stir in the heavy cream and shredded Gouda cheese. Heat gently, stirring constantly, until the cheese melts completely and the soup achieves a creamy, smooth consistency. Adjust seasoning if needed.
07 - Ladle hot soup into bowls and garnish with finely chopped fresh herbs and extra shredded Gouda cheese if desired.