Method
For the Parmigiano Reggiano cream sauce, bring milk and cream to a simmer, add Parmigiano Reggiano and keep whisking till the cheese is fully melted. Remove from heat and allow cooling.
For the soup, cook Parmigiano Reggiano rinds in a microwave at maximum power for 1 minute. Set aside for garnish.
Add oil and butter in a heavy-bottomed saucepan, once hot add onion and cook on gentle heat for 3-4 minutes till soft. Add potato and a pinch of salt, then add spinach and stir for 1 minute, then add stock and bring to a boil.
Cook for 5-10 minutes then blend into a food processor till creamy and smooth.
Pour soup into bowls, drizzle with Parmigiano Reggiano cream sauce and garnish with ‘Parmigiano rinds puffs’.
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