Cut tomatoes into quarters

Peel and finely chop garlic

Peel and cut carrots

Cut celery

Peel and slice onion

Cut basil leaves into strips and set aside

Slowly heat oil and butter over low heat in a pan

Add sliced onions and saute until translucent

Add the chopped garlic and celery, stirring occasionally

Add carrots and tomatoes.

Stir on medium-high heat for 3 minutes

Add 4 cups of water

Bring to a boil

Cover and simmer on low heat for 15 minutes

Remove from heat

Blend until smooth

Strain into separate pot

Return to a boil

Stir in basil and garnish

Serve hot