Peel and chop the onion. Peel, wash and chop the potatoes. Heat 2 tablespoons of oil in a saucepan. Add onion and potatoes, fry. Pour on stock. Season with salt and pepper. Bring to the boil and simmer for about 25 minutes.
In the meantime, fry the bacon in a pan without fat until crispy. Take out and let it drain on kitchen paper. Add popcorn corn to the hot bacon fat. Cover and let it pop up. When all corn kernels are popped up, add 1 teaspoon salt, chili powder, paprika powder and chili flakes. Remove from the pan. Crumble the bacon and mix into the popcorn.
Stir 200 g crème fraîche into the soup and bring to the boil. Add peas, bring to the boil again and puree finely with a blender. Heat 2 tablespoons of oil in a frying pan. Press the meat mixture as dumplings from the skin directly into the hot oil and fry all around for about 5 minutes. Remove the meatballs.
Stir 50 g crème fraîche until smooth. Wash the mint and shake dry. Pluck the leaves from the stalks and chop finely. Arrange pea soup and meatballs in small bowls. Spread the crème fraiche as a blob. Sprinkle each with some bacon popcorn and mint. Serve the rest of the bacon popcorn in a small bowl.