Ingredients for 6 Portions:
1 tbsp olive oil
1 cup diced onion
1/2 cup diced celery
3 cloves garlic
1 quart chicken broth, plus more as needed
1 (28-oz) can crushed San Marzano tomatoes, or about 3 1/2 cups of other crushed tomatoes
1/2 tsp paprika
3 tbsp white long grain rice
1/2 cup heavy cream
1 or 2 tsp sugar, or to taste
salt and pepper to taste
cayenne to taste
basil to garnish

Full instructions here

Interestingly rice was used instead of potato ;) I guess, you learn something new everyday.