Best-Ever Cauliflower Soup

Ingredients

• Freshly ground black pepper
• Kosher salt
• 1 large head cauliflower, cut into small florets
• 1 tbsp. extra-virgin olive oil, plus more for garnish
• 1/4 c. heavy cream or whole milk
• 3 sprigs fresh thyme, plus more for serving
• 6 c. chicken or vegetable stock
• 1 medium yellow onion, chopped
• 1 clove garlic, minced
• 1 bay leaf