Green breakfast smoothie with avocado and mint

My mint went absolutely feral this month. I have three pots of it wedged onto the sunny end of my balcony in Newtown, and by mid-morning the whole corner smells like a bushland creek after rain. I had to do something with it, so I started making this smoothie most mornings, and honestly it has stuck harder than most breakfast habits I have tried.

This is a green breakfast smoothie built around avocado, which is not the obvious choice. Most green smoothies use banana as their base and end up tasting primarily of banana with a faint suggestion of leafy greens. I use half a ripe Hass avocado instead, and the result is a drink that is genuinely silky, properly filling, and holds its colour for longer because there is no oxidising banana in there turning everything brown. The mint cuts right through the richness. Together, they work.

Why avocado makes this green breakfast smoothie different

Avocado gives you unsaturated fat, which slows the absorption of the natural sugars from the fruit and keeps you satisfied well past nine o’clock. Paired with a tablespoon of psyllium husk or ground flaxseed, the fibre content climbs meaningfully. According to Eat for Health, most Australians fall short of their daily fibre target, and a well-constructed smoothie is one of the easiest places to close that gap without cooking anything. See also why fibre matters more than most of us think for the longer explanation.

What I love about this particular combination is the texture. Blended avocado goes completely smooth in a high-speed blender, no chunks, no graininess, just a pale green cream that coats the inside of the glass. Add baby spinach and it deepens to that dark cucumber green that looks genuinely appetising rather than swampy.

One honest caveat: if you are making this on a day you are already running late, it requires a decent blender. I have tried it in a cheap stick blender and the spinach stays fibrous and slightly unpleasant. If that is what you have, blanch the spinach in boiling water for twenty seconds, squeeze it very dry, and then blend. More effort, fair enough, but it works.

Ingredients

• ½ ripe Hass avocado (about 80 g flesh)
• 1 large handful baby spinach (about 40 g)
• 1 small Lebanese cucumber, roughly chopped (about 120 g)
• 1 medium green apple, cored and roughly chopped (skin on)
• 8–10 fresh mint leaves, plus extra to serve
• 1 tbsp psyllium husk or ground golden flaxseed
• 1 tbsp fresh lemon juice
• 1 tsp raw honey or pure maple syrup (optional, depending on how sweet your apple is)
• 200 ml chilled coconut water
• 50 ml plain full-fat or oat-based yoghurt
• 4–5 ice cubes

Serves 1 generously, or 2 smaller glasses to share.

Method

1. Add the coconut water and yoghurt to the blender first. This helps everything move from the bottom up and stops the avocado sitting stubbornly on the blade.
2. Add the spinach and blend on high for about 20 seconds until you have a smooth, dark green liquid with no visible leaf pieces. Do not skip this step and add everything at once; blending the greens first gives a far smoother final texture.
3. Add the avocado flesh, cucumber, apple, mint leaves, psyllium husk, lemon juice and ice cubes.
4. Blend on high for a full 45 seconds. Scrape down the sides once if needed.
5. Taste. Add the honey or maple syrup if the apple was tart. Blend for another 5 seconds to combine.
6. Pour immediately into a chilled glass. Add a few extra mint leaves on top if you want. Drink within 15 minutes for the best colour and texture.

Making it ahead without it going grey

The lemon juice in the recipe does a lot of work here. Vitamin C slows oxidation, which is the main reason green smoothies turn a disheartening grey-brown within half an hour. If you want to prep this the night before, blend everything except the ice, pour it into a glass jar, press a small piece of baking paper directly onto the surface, seal the lid, and refrigerate. It will hold colour reasonably well for up to 10 hours. Give it a hard shake in the morning, add ice, and go.

I do this on Wednesday and Thursday mornings when the week gets busy. The mint aroma is noticeably softer the next day, which is the trade-off. For the freshest result, blend to order. But a fridge-prepped version is vastly better than skipping breakfast entirely, which is what I was doing before I sorted this out.

For other make-ahead breakfast ideas that genuinely hold up overnight, the overnight bircher with grated pear and cinnamon is one of my most-used recipes on the site, and the chia pudding with stewed rhubarb is a good companion if you want something a little more substantial.

A variation worth trying: ginger and lime instead of mint

Some mornings the mint feels too cool and fresh, especially in winter when I want something with a little more heat. Swap the mint for a 2 cm piece of fresh ginger, peeled, and replace the lemon with lime juice. The flavour shifts noticeably; the ginger gives it a warm edge that makes it feel more suited to a cold July morning in Sydney than the mint version does. I grow a small chilli plant on the same balcony as the mint, and occasionally I add a tiny pinch of chilli flakes to the ginger variation. Not enough to taste hot, just enough to warm the back of the throat. My partner thinks this is unnecessary. I think it is the best version. You can decide for yourself.

If you are building a broader breakfast rotation, this smoothie sits well alongside a more textured option. The smashed avo with dukkah and poached egg uses similar flavour territory but gives you something to chew. And if you want to understand more about why a high-fibre breakfast supports sustained energy, Better Health Victoria has a clear, practical breakdown of the research without the hype.

How to serve it if you want to make it more of a meal

Pour it into a wide bowl, add a tablespoon of gluten-free granola across the top, a few pumpkin seeds, and a thin ribbon of lime zest. It becomes something closer to a smoothie bowl, which is more satisfying if you have time to sit down and eat properly. The crunch against the silky avocado base is genuinely good. I would not bother with this on a Tuesday at seven-fifteen, but on a Sunday morning with coffee, it is a proper breakfast.

The psyllium husk is non-negotiable for me, even though it thickens the smoothie slightly. That fibre is doing real work, and skipping it to make the drink more pourable feels like a false economy. Adjust with an extra splash of coconut water if it gets too thick for your liking.

Keep the recipe as written first. Then start playing with it. That is usually how the best versions of anything end up.

— Mei Lin, Golden Door Living kitchen