Spinach Pesto

Bahan-bahan (2 porsi)

• 1 cup (112g) walnuts, (broken into pieces (or pine nuts) (see Note 1))
• 4 cloves garlic, (roughly chopped)
• 5 ounces (140g) baby spinach
• 4 loosely packed cups (50g) fresh basil leaves
• 2 small (or 1 large) lemons, (zested + 4 tablespoons (60 mL) juice)
• Kosher salt and freshly cracked black pepper
• ½ teaspoon red pepper flakes ((or 1 to 2 teaspoons Aleppo pepper) (omit or reduce for very mild heat))
• ¼ cup (20g) nutritional yeast
• ½ cup (112g) extra virgin olive oil ((see Note 2))
• 1 to 2 tablespoons capers, (drained (optional))