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This avocado cucumber green smoothie blends ripe avocado, cucumber, spinach, and a frozen banana with almond milk and lime. It takes 5 minutes and makes two thick glasses.
I’ll admit I was skeptical of cucumber in a smoothie. Then I tried it. It’s cool. Mild. Fresh, like a salad you can sip.
The avocado does the creamy work, so there’s no yogurt needed. The banana adds just enough sweetness that kids will drink it without a fuss.
One thing to watch: use an avocado that gives slightly when pressed. An under-ripe one makes the smoothie grassy and a little bitter, and no amount of maple syrup fixes that.
Why You’ll Love This Recipe
- Ready in 5 minutes with one blender and no cooking
- Avocado makes it thick and creamy without any yogurt
- Mild enough that kids drink it without complaint
- Budget-friendly staples you can keep in the fridge and freezer
Ingredient Notes
- ripe avocado: Pick one that yields slightly to a gentle press. If yours is firm, leave it on the counter a day or two. Frozen avocado chunks also work and make the smoothie colder.
- cucumber: A regular slicing cucumber works well. Peel it if the skin is waxed or thick. English cucumbers are thinner skinned and can stay unpeeled.
- frozen banana: Freeze ripe banana slices on a tray first. Spotty bananas are sweeter, so you can cut the maple syrup if yours are very ripe.
- baby spinach: Spinach is mild and blends smooth. Baby kale works too, but it tastes stronger and can leave small flecks.
- unsweetened almond milk: Oat milk or any unsweetened non-dairy milk works as a substitute. Whole dairy milk also works if you don’t need it vegan.
- lime juice: Fresh juice tastes brighter than bottled. It also helps slow the avocado from browning if you store leftovers.
Avocado Cucumber Green Smoothie with Spinach and Lime
Ingredients
Method
- Pour the almond milk, lime juice, maple syrup, and salt into a 1.5 L / 6-cup blender jar. Scoop in the avocado flesh, then add the chopped cucumber, spinach, and mint. Top with the frozen banana slices and ice.
- Blend on low for 15 seconds, then on high for 45 to 60 seconds, until the smoothie is completely smooth with no green flecks.
- Taste it. Add 1 tsp more maple syrup if it tastes flat, or a squeeze of lime if it tastes too mellow, then blend for 5 seconds. If it’s too thick to pour, blend in 2 tbsp of almond milk.
- Pour into two tall glasses and drink right away, within 30 minutes, while it’s thickest and brightest.
Notes
- Freeze banana slices ahead so the smoothie turns out thick and cold.
- Add liquid first and ice last to keep the blender from stalling.
- Drink within 30 minutes for the brightest color and thickest texture.
- Taste before pouring and adjust lime or maple syrup, since avocado ripeness varies.
Tips for Success
- Choose an avocado that yields to a gentle press, and flick off the stem cap to check for green underneath.
- Freeze banana slices on a tray ahead of time, then bag them so you can scoop out exactly what you need.
- Peel waxed or thick-skinned cucumbers, since the skin can leave a bitter edge and tiny flecks in the glass.
- Pour the liquid in first and add ice last so the blades catch everything and pull it down without stalling.
- Blend for a full minute even if it looks smooth at 30 seconds, because spinach needs time to break down.
Variations
- Swap the almond milk for coconut water to get a lighter, slightly sweeter drink with a clean, tropical edge.
- Add 1 scoop of unflavored or vanilla protein powder and an extra splash of milk to turn it into a more filling breakfast.
- Blend in 1 tsp of grated fresh ginger for a sharper, zippy bite that pairs well with the lime.
Storage and Reheating
This smoothie tastes best within 30 minutes of blending, when it’s thickest and the color is bright green. Leftovers keep in the fridge for up to 24 hours in a sealed jar filled to the top, which limits air contact and slows browning.
Shake or stir before drinking, since it separates as it sits. The color turns olive after a few hours, but the taste holds up.
For longer storage, pour the smoothie into an ice cube tray or a freezer-safe jar and freeze for up to 1 month. Blend the frozen cubes with 120 ml / 1/2 cup of almond milk until smooth. Skip heating it, since this is a cold drink.
Serving Suggestions
An avocado cucumber green smoothie works as a light breakfast, a post-walk snack, or a lunchbox drink. Pour it into a tall glass and drink it cold with a straw.
For breakfast, pair it with a slice of whole-grain toast and peanut butter, or a hard-boiled egg. The smoothie is light at about 250 calories per glass, and a little protein on the side keeps you full longer.
For a nicer glass, top it with a few hemp seeds or a thin cucumber ribbon. Kids tend to like it in a clear cup with a fun straw.
FAQ
Why is my avocado cucumber smoothie bitter or grassy?
Under-ripe avocado is the usual cause. Use one that gives slightly when pressed and shows green under the stem cap. If the cucumber skin is thick or waxed, peel it. A tablespoon of lime juice and a tablespoon of maple syrup will also balance any leftover grassiness.
Can I make this green smoothie without banana?
Yes, swap the banana for 80 g / 1/2 cup of frozen mango or pineapple chunks. You’ll still get a cold, thick drink, but it tastes more tropical and a little tangier. Without any frozen fruit, add an extra 1/2 cup of ice and one pitted Medjool date so it keeps its body and sweetness.
Does an avocado cucumber smoothie turn brown in the fridge?
It darkens slowly. Lime juice and a sealed jar filled to the top keep it green for a few hours, and it turns olive by the next day. It’s still fine to drink up to 24 hours later, but the texture is best within 30 minutes of blending. Shake it first.
What goes well with an avocado cucumber green smoothie at breakfast?
Something with protein and a bit of crunch. A slice of whole-grain toast with peanut butter, a hard-boiled egg, or a small bowl of oats all work. The smoothie is about 250 calories per glass, so it’s light on its own and fills you up better with a side.
Is this avocado cucumber smoothie vegan and dairy free?
Yes, it’s vegan, dairy free, and gluten free as written, since it uses almond milk and maple syrup. It does contain tree nuts from the almond milk. For a nut-free version, use oat milk or another unsweetened non-dairy milk and check the label.
How is an avocado cucumber smoothie different from a regular green smoothie?
A regular green smoothie leans on juice, yogurt, or a lot of fruit for body and sweetness. This one gets its thickness from avocado and its fresh taste from cucumber, so it lands around 15 g of sugar per glass. It’s also milder, which helps if you don’t love a grassy kale flavor.
