5 Bahan Sup Kembang Kol Krim dengan Kale Pesto

Bahan-bahan (4 porsi)

• 3 tablespoons unsalted butter
• 1 yellow onion, thinly sliced
• 6 cups chicken or vegetable broth
• 1 large head of cauliflower (cut into florets – about 6 cups)
• 3/4 cup half and half
• 1 1/2 – 2 cups packed kale leaves (stems removed)
• 1/2 cup olive oil
• 1/2 cup pine nuts (sometimes I also use almonds)
• 1 clove garlic
• 1/2 teaspoon salt (more to taste)
• juice of 1 lemon
• 1/4 cup grated parmesan cheese (optional)
• 1 tablespoon truffle oil (optional, but seriously SO GOOD)
• 4 slices of bread for croutons (see notes)