Dragon Fruit Refresher - Homemade & Store-Bought

What a dragon fruit refresher actually is

A refresher is not a smoothie and not a juice. It sits between the two: a light, ice-cold drink built from diluted fruit juice or purée, water or coconut milk, and a small amount of sweetener. The texture is thin enough to drink through a straw without effort, and the flavour is meant to be gentle rather than concentrated. That is the whole idea behind the category — something you can drink a large cup of on a hot afternoon without it feeling heavy.

Dragon fruit works unusually well in this format, and the reason is worth understanding before you make one. The fruit is roughly 80 to 90 percent water, mildly sweet, and very low in acid. On its own that makes it taste faint. Diluted into a refresher it stops being a weakness and becomes the point: the dragon fruit supplies colour, body and a soft melon-like background, and a second, sharper fruit supplies the flavour you actually notice.

Choosing your dragon fruit

Which variety you use changes the drink more than any other decision.

• Red or magenta flesh (Hylocereus costaricensis) gives the vivid fuchsia colour people associate with these drinks. It is the sweetest common variety and needs the least added sugar. It will also stain a cutting board, a shirt and your hands.
• White flesh (Hylocereus undatus) is the cheapest and most widely available, but it produces a pale grey-pink drink and a very mild flavour. Use it when you are adding berries for colour anyway.
• Yellow skin, white flesh (Selenicereus megalanthus) is the sweetest of all and makes an excellent refresher, but it is expensive and small, so most people save it for eating fresh.
• Frozen cubes or purée are a genuinely good substitute and often better than an underripe fresh fruit. They are picked riper than fruit destined for export.

Ripeness matters as much as variety. A ripe dragon fruit gives slightly when you press it, like a ripe avocado, and the dry papery "wings" on the skin have started to brown at the tips. A rock-hard fruit with bright green wings was picked early and will taste of almost nothing.

The base recipe

This makes roughly two large glasses.

• 1 ripe dragon fruit, flesh scooped out (about 1 cup / 200 g)
• 2 cups cold water, or 1 cup water and 1 cup coconut milk
• 1 to 2 tablespoons honey, agave or simple syrup, to taste
• 1 tablespoon lime or lemon juice
• Plenty of ice

1. Halve the fruit and scoop the flesh straight out with a spoon. The skin is not edible and comes away cleanly.
2. Blend the flesh with the water until completely smooth, about 30 seconds.
3. Strain through a fine sieve if you dislike the texture of the seeds. Most people leave them in — they are edible, faintly nutty, and carry most of the fibre.
4. Stir in the sweetener and the citrus juice. Taste and adjust.
5. Pour over a full glass of ice and serve immediately.

Why the citrus is not optional

This is the step home versions usually skip, and it is the reason a homemade refresher can taste flat next to a shop-bought one. Dragon fruit has very little acid of its own. Without a squeeze of lime the drink reads as sweet and slightly dull. A tablespoon of lime juice does not make it taste of lime — it makes it taste of dragon fruit.

Getting the dilution right

One part fruit to two parts liquid is the starting ratio. Less liquid and you have a thin smoothie that coats the mouth; more and the flavour disappears. If you are using coconut milk, expect a rounder, creamier drink with a pale pink colour rather than a bright one — the fat mutes the pigment.

Variations worth trying

• Strawberry dragon fruit: add half a cup of strawberries to the blender. The most reliable combination, and the one most chains sell.
• Mango dragon fruit: swap half the dragon fruit for mango for a sweeter, fuller drink.
• Pineapple and lime: sharper and more tropical, and it needs no added sugar at all.
• Green tea base: replace the water with cooled green tea for a lightly caffeinated version.
• Sparkling: use half still water and top with soda water at the end, after blending.

Storage and make-ahead

Blended dragon fruit separates within an hour or two — that is normal and a shake fixes it. The colour, however, does fade. Red dragon fruit pigment is betacyanin, the same class of pigment found in beetroot, and it degrades with light, heat and time. A drink that is brilliant magenta at noon will be a duller brownish-pink by evening. Blend the base fresh where you can, or freeze it in an ice cube tray and blend the cubes with water when you want a glass.