Transfer soup to a clean saucepan, and place over low heat; do not boil.

Melt 1 teaspoon of the butter in a clean saucepan.

Place in a clean saucepan over low heat until heated through.

Simmer for an additional 5 to 10 minutes and then strain into a clean saucepan.

Heat the remaining tablespoon of oil in a clean saucepan.

Transfer them all to a clean saucepan and mix together.

Pour into a clean saucepan, and bring to a simmer.

Strain into a clean saucepan; reduce over medium heat until 1/2 cup remains.

Pass the sauce through a sieve into a clean saucepan.

Run the soup through a sieve into a clean saucepan.