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Purple Haze Smoothie
smoothiesBlend 10 min · Serves 210 min totalapprox. 145 kcal per glass · serves 2

Purple Haze Smoothie

September 23, 2026

My oldest daughter came home to spend the night. She is a singer, and her throat was starting to feel off — a scratch, a warning sign, the kind of thing you cannot ignore when you have a performance coming at the weekend. So I went to the kitchen this morning.

Every ingredient in this glass has a reason. The whole lemon goes in peel and all — that is where the vitamin C is concentrated, and vitamin C is what the immune system reaches for first when a threat arrives. The lime adds another layer of citrus and its own antimicrobial compounds. The honey coats the throat directly — raw honey has been used for sore throats for centuries and the research backs it up. The Himalayan salt draws out inflammation and the capsaicin in the chilli gets the circulation moving, which is exactly what a tired, scratchy throat needs. The spinach and matcha are there because she needed nourishment, and a boost,  not just comfort. (Matcha have the same effect on her as coffee)

The pitaya turns purple in the oat milk — the anthocyanins in the pitaya react with the oat milk and shift the colour. It is still beautiful. A purple cloud over deep green, the foam settling and bleeding at the edges. She took one look at it and named it: Purple Haze. That is the name. I aimed to make it look beautiful, because she deserved something beautiful. Because she is beautiful 🩶 and she has an important weekend ahead.

The recipe, step by step

Apple slices and matcha powder loaded into the blender ready to blend
Apple, spinach, matcha — everything in before the blend
Two diamond-cut glasses of deep green smoothie with purple pitaya foam and lime garnish
The pitaya turns purple in oat milk — deep green, soft purple, lime on the rim

What you'll need

  • 1 apple — cored, roughly chopped
  • 1 whole seedless lemon — including peel
  • 1 lime — peeled
  • 1½ cups baby spinach
  • 1 cup water
  • 2 tablespoons raw honey
  • 1 teaspoon matcha powder
  • ½ teaspoon Himalayan pink salt
  • ½ teaspoon chilli flakes
  • Ice, to taste
  • For the foam: ⅓ cup Oatly Barista oat milk (or homemade oat milk)
  • 2–3 teaspoons pink pitaya powder — turns a soft purple in oat milk, which is exactly what you see in the glass

How to make it

  1. 1

    Add the apple, whole seedless lemon (peel and all), peeled lime, baby spinach, water, honey, matcha, Himalayan pink salt, chilli flakes, and ice to your blender.

  2. 2

    Blend on the smoothie setting. Run the cycle twice — the first pass breaks everything down, the second builds the texture and fully breaks down the lemon peel. Blend until the base is completely smooth and deeply green.

  3. 3

    While the green base is blending, make the foam. Stir the pink pitaya powder into the cold oat milk until fully dissolved — no streaks. The pitaya will turn a soft purple in the oat milk rather than pink; that is the colour you are working with.

  4. 4

    Use the Nespresso Aeroccino on the cold froth setting to whip the purple oat milk into a light, airy foam.

  5. 5

    Pour the green smoothie into your glasses, filling them about two-thirds of the way.

  6. 6

    Spoon half the purple foam gently over the green — let it settle and begin to sink into the surface.

  7. 7

    Pour the remaining foam slowly over the top and let it find its own level. The purple and green will divide and bleed at the edges. Serve immediately.

Why it works

  • Whole seedless lemon: Blending the whole lemon — peel and all — gives you far more than the juice alone. The peel is where the flavonoids are concentrated, particularly hesperidin and naringenin, which have anti-inflammatory and antioxidant properties that support immune response. The vitamin C in the juice and peel is what the immune system reaches for first when a threat arrives — it stimulates the production and function of white blood cells, supports the skin and mucosal barriers that line the throat, and has been shown to reduce the duration and severity of upper respiratory infections. For a singer with a scratchy throat, this is the most important ingredient in the glass.
  • Lime: Lime adds a second layer of vitamin C and its own antimicrobial compounds — limonoids and flavonoids that have been studied for their ability to inhibit the growth of bacteria and viruses. The combination of lemon and lime in the same glass gives the immune system more to work with than either would alone. Lime also has a mild astringent quality that can help reduce inflammation in irritated throat tissue, and its acidity stimulates saliva production, which keeps the throat moist and helps flush pathogens away from the mucosal lining.
  • Raw honey: Raw honey is one of the oldest and most well-evidenced remedies for sore throats. It coats the throat directly, forming a protective layer over irritated tissue that soothes on contact. It has natural antimicrobial properties — hydrogen peroxide, bee defensin-1, and a low pH that creates an inhospitable environment for bacteria. A 2021 review in BMJ Evidence-Based Medicine found honey more effective than usual care for upper respiratory tract symptoms, including sore throat. Raw honey retains all of these properties; processed honey does not. Two tablespoons is a meaningful dose.
  • Baby spinach: One and a half cups of baby spinach delivers iron, folate, magnesium, vitamin K, and vitamin C — all of which support immune function and tissue repair. The folate is particularly relevant here: it supports DNA repair and healthy cell division, which is how the body rebuilds damaged mucosal tissue in the throat. The magnesium supports muscle function, including the muscles of the larynx and vocal cords. The vitamin C from the lemon and lime in this recipe significantly improves the absorption of the non-haem iron from the spinach, making the combination more effective than either alone.
  • Apple: Apple provides quercetin — a flavonoid with well-documented anti-inflammatory and antiviral properties. Quercetin has been shown to inhibit the replication of several respiratory viruses and to reduce the release of histamine, which contributes to throat inflammation and irritation. It also provides pectin, a soluble fibre that feeds beneficial gut bacteria; a healthy gut microbiome is closely linked to a well-functioning immune system. The natural sugars in apple provide a gentle, sustained energy source that is easy on a throat that does not want to work hard.
  • Matcha: Matcha is exceptionally rich in catechins, particularly EGCG — one of the most studied antioxidant compounds in the human diet. EGCG has been shown to have antiviral properties, including the ability to inhibit the replication of influenza and other respiratory viruses by binding to viral proteins and preventing them from entering host cells. Matcha also contains L-theanine, which promotes calm, focused alertness — useful when you need to rest and recover without feeling flat. The caffeine is released slowly, producing a sustained lift rather than a spike.
  • Chilli flakes: Capsaicin — the active compound in chilli — is a natural decongestant. It stimulates the mucous membranes, thins mucus secretions, and promotes drainage, which helps clear the upper respiratory tract and relieve the pressure that builds behind a sore throat. It also has mild analgesic properties: capsaicin temporarily depletes substance P, a neuropeptide involved in pain signalling, which is why it can reduce the sensation of throat pain. Half a teaspoon is enough to feel the effect without overwhelming the drink.
  • Himalayan pink salt: Salt has been used as a throat remedy for generations — gargling with salt water is one of the few home remedies that has genuine clinical support. Salt creates a hypertonic environment in the throat that draws fluid out of swollen tissue, reducing inflammation and oedema. It also disrupts the cell membranes of bacteria and viruses, reducing their ability to survive on the mucosal surface. In a blended drink, the salt works systemically rather than topically, but it still supports electrolyte balance and helps the body manage the fluid shifts that come with inflammation.
  • Pink pitaya powder: Pink pitaya — dragon fruit — is rich in betalains and flavonoids, antioxidants that help neutralise free radicals and reduce oxidative stress. It is a source of vitamin C, iron, and magnesium, and contains prebiotic fibre that supports gut health and, by extension, immune function. In oat milk, the pitaya powder turns a soft purple rather than pink — the anthocyanins react with the alkalinity of the milk and shift the hue. Anthocyanins are themselves potent anti-inflammatory compounds, so the colour change is not just visual chemistry; it is a sign that the active compounds are present and intact.

Shop this recipe

Organic Cosmic Crisp Apples

Organic Cosmic Crisp Apples

USDA Organic · Crisp, sweet-tart · Stays firm longer than most varieties

Naturally Seedless Lemons

Naturally Seedless Lemons

A bright, practical bag of seedless lemons to keep on hand for smoothies, dressings, and everyday kitchen cooking.

Lime

Lime

A fresh, bright lime for smoothies, dressings, and everyday cooking.

Earthbound Farm Organic Baby Spinach

Earthbound Farm Organic Baby Spinach

Organic baby spinach with a tender, mild flavor for smoothies, salads, and easy everyday meals.

Wild Mountain Brand Raw 100% Pure Natural Honey

Wild Mountain Brand Raw 100% Pure Natural Honey

My everyday honey — raw, unfiltered, and genuinely good. A 2lb jar that earns its place on the counter. U.S. Grade A Fancy, from a family operation in Oakland that has been doing this since 1925.

KANDO TEA Matcha Ceremonial Grade Green Tea Powder, 40g

KANDO TEA Matcha Ceremonial Grade Green Tea Powder, 40g

The matcha I use in the Power of the Earth smoothie. Ceremonial grade from Kagoshima, Japan — stone-ground, vivid green, and smooth enough to drink straight. No bitterness, no chalkiness. Just clean, focused energy.

REF Stockholm Sweden Mousse No. 435

REF Stockholm Sweden Mousse No. 435

A styling mousse made to add extra body and volume while helping hair hold its shape through the day.

Simply Organic Crushed Red Pepper, 1.59 oz

Simply Organic Crushed Red Pepper, 1.59 oz

A bright, lively pinch of heat for pasta, eggs, roasted vegetables, soups, and any dish that needs a little spark.

Suncore Foods Pink Pitaya Powder

Suncore Foods Pink Pitaya Powder

Vibrant, naturally pink dragon fruit powder made from 100% pink pitaya — no fillers, no additives. A teaspoon or two turns any smoothie a stunning deep rose without artificial colouring.

Oatly Barista Edition Oatmilk, 32 fl oz

Oatly Barista Edition Oatmilk, 32 fl oz

The oat milk I use for the blue spirulina foam in the Power of the Earth smoothie. The Barista Edition froths beautifully on cold — no dairy, no nuts, no gluten. Creamy, neutral, and it holds its foam.

Nespresso Aeroccino 3 Milk Frother

Nespresso Aeroccino 3 Milk Frother

The frother I use to make the blue spirulina foam in the Power of the Earth smoothie. One button — hot froth, cold froth, or warm milk. The cold setting is what gives you that light, airy blue foam without warming the oat milk.

SMEG Retro Style Blender

SMEG Retro Style Blender

The most beautiful blender on any countertop. Powerful, smooth, and built to last — SMEG's retro design means it earns its place out in the open rather than hidden in a cupboard.

PurePod Produce Cleaner & Vegetable Cleaner with Oh-Ion Technology

PurePod Produce Cleaner & Vegetable Cleaner with Oh-Ion Technology

A compact fruit and vegetable washing machine that uses Oh-Ion technology to clean produce without chemicals. Drop it in a bowl of water with your fruits or vegetables, press the button, and it neutralises pesticides, wax coatings, and surface bacteria in minutes. Rechargeable and easy to store.

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