Broccoli Leek Soup

Ingredients

• 1 large bunch broccoli (about 1 1/2 pounds)
• 1 tablespoon olive oil
• 1 tablespoon unsalted butter
• 2 medium leeks, white and light green parts only, thinly sliced
• 1 medium baking potato, peeled and cut into 1-inch pieces
• 1 garlic clove, thinly sliced
• 3 cups low sodium chicken broth or 3 cups vegetable broth
• 3/4 teaspoon salt
• 1 pinch fresh ground pepper
• 1/4 cup half-and-half (optional)
• 1/4 cup snipped chives