INGREDIENTS
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1 kg waxy potatoes, sliced
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2 cups/400ml heavy cream
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1 cup/200ml milk
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3 cloves garlic, minced
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1 tsp black pepper
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1 tbsp oregano
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1 tsp salt
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2 cups tomato passata
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2 cups grated mozzarella
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1 pack pepperoni
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Parmesan (for grating)