Artichoke vichyssoise

Ingredients

• 3 tbsp butter
• 1 leek , chopped, about 2 cups
• 398-mL can artichoke hearts , drained and chopped
• 1 small white potato , peeled and sliced, about 1 1/4 cups
• 2 1/3 cups sodium-reduced chicken broth
• 1/2 cup white wine
• 1 tbsp chopped fresh tarragon
• 1/4 tsp salt
• 1 cup 35% cream

GARNISH

• 1 small onion , thinly sliced
• 1 tsp canola oil
• 2 tbsp olive tapenade
• 1 plum tomato , diced