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A green smoothie in a textured glass decorated with a slice of green apple on the rim of the glass on a white marble backdrop.

Sour Apple Smoothie

5 Stars 4 Stars 3 Stars 2 Stars 1 Star 5 from 3 reviews
  • Author: Bianca
  • Prep Time: 5
  • Cook Time: 5
  • Total Time: 10 minutes
  • Yield: 1 1x
  • Category: smoothie
  • Method: blender
  • Diet: Vegan


This refreshing vegan sour apple smoothie is a green smoothie without bananas. Made with fresh green sour apples, unsweetened almond milk, lemon juice, maple syrup, ginger, and cinnamon, this smoothie is packed with flavor and nutrients.


  • 1 large Granny Smith apple, cored and chopped
  • 1 cup (250 ml) unsweetened almond milk
  • ½ cup (1 handful) baby spinach
  • 1 tbsp lemon juice
  • 2 tbsp cashew nuts
  • 1 tbsp maple syrup or 2 pitted Medjool dates
  • 1 tsp grated ginger or 0.5 to 1 inch piece of ginger
  • 1/2 tsp ground cinnamon
  • 1 cup ice cubes (optional for a cold and thicker smoothie)


  1. Begin by prepping the ingredients. Wash the apple, then chop it into pieces. Add the almond milk, maple syrup, lemon juice, cashews, ginger, cinnamon, spinach, apple chunks, and ice to the blender.
  2. Blend on low speed for 20 seconds, then switch to high speed and blend for another 20 seconds or until smooth and combined. Use a spatula to scrape down the sides of the container.
  3. Adjust sweetness or sourness with additional maple syrup or lemon juice if desired, then blend for another 10 seconds.
  4. Pour into a glass and enjoy immediately to maintain the desired consistency.


It is best to use a high-speed blender, but if you have a regular blender, make sure to layer the ingredients from liquid and soft to hard ingredients. If your blender is still struggling or becoming hot, give it a rest and add a splash of almond milk or water.

Green apples are what give this smoothie its subtle sour taste. You can use any other apple variety, but it will impact the flavor and make the smoothie sweeter. This can be balanced by adding more lemon juice and less maple syrup. 

Taste the smoothie and adjust the sweetener if the smoothie is too sour for you. If the smoothie is too sweet and you have already added maple syrup, add more green apple or lemon juice to balance the flavors. 

This recipe is with almond milk, but any other plant-based milk will be a good option for this smoothie recipe. Soy milk will make this smoothie more protein-rich, and oat milk or coconut milk can make this smoothie sweeter. You can also use dairy milk if you are not vegan or dairy-free. 

Make it nut-free
Raw cashews give this smoothie a lovely creamy texture. It is possible, however, to make this smoothie nut-free and still add some healthy fats. Using unsweetened coconut milk instead of almond milk is an option. Another option is adding a tablespoon of chia seeds, flaxseeds, or half an avocado instead of cashews.

Make it extra thick and cold
Ice cubes are an option to thicken and cool this smoothie recipe. Another option is to add half a frozen banana or vegan Greek yogurt. This will not only make the smoothie colder and thicker but also slightly sweeter depending on the ripeness of the banana. 

Too thick
You can add more almond milk or water if the smoothie is too thick. If the smoothie turns out too thin, add frozen fruits, such as half a frozen banana, or add (more) ice cubes.


  • Serving Size: 1
  • Calories: 219
  • Sugar: 32.4g
  • Sodium: 212.4mg
  • Fat: 3.4g
  • Unsaturated Fat: 0g
  • Trans Fat: 0g
  • Carbohydrates: 46g
  • Fiber: 6.9g
  • Protein: 3g
  • Cholesterol: 0mg