Step 1 - Sauté the onion in butter over medium heat until transparent. Add the jerky and cook, stirring 2-3 minutes. Pour in 3 cups of cold water and bring to a boil. Reduce heat and simmer over low heat for 20-30 minutes.
Step 2 - In a bowl mix the bread crumbs with the cream and add to the soup. Season with salt, pepper and cook until the mixture thickens slightly, stirring constantly.
Step 3 - Preheat the oven to high temperature (200°C).
Step 4 - Distribute in individual baking dishes the potatoes and eggs and pour the charqui soup. Sprinkle the surface with grated cheese and bake until the soup is boiling. Serve immediately.