Green "Julius" Smoothie

Bahan-bahan (2 porsi)

• 2 large naval oranges, zested* and peeled
• 1 cup almond milk, frozen into ice cubes
• 1 large handful fresh baby spinach
• 1/3 cup plain or vanilla Greek yogurt
• 1 teaspoon vanilla extract
• 1 tablespoon honey or maple syrup (or your desired sweetener)