Enough greens, not all the greens

A green smoothie does not need a packed jug of leaves. Thirty grams of baby spinach contributes colour while leaving pineapple as the principal flavour. Increasing it dramatically makes a different drink, with a stronger vegetal taste and more fibre for the blender to break down. This recipe is about balance, not hiding as many vegetables as possible.

Pineapple's tough central core can leave stringy fragments in a modest blender. Remove the firmest part before weighing the fruit. If using a very ripe pineapple, the softer sections of core may blend acceptably, but there is no need to force them into this recipe. Save suitable trimmings for another use rather than compromising the texture.

Use frozen banana as the chilled element

Frozen banana thickens the drink without adding ice that later melts into water. Slice it before freezing so the pieces move easily around the blades. A blender that is not rated for frozen ingredients should not be used for this method; use chilled banana instead and expect a looser smoothie.

The initial spinach-and-water blend helps prevent large green flecks. Once the fruit is added, blend only until smooth. A long run can warm the drink and whip in a cap of foam. If foam appears, let it settle briefly and stir gently rather than repeatedly switching the blender on. Lime is added for flavour, not as a food-preservation step.

Solve a stringy texture before adding more liquid

If fine pineapple fibres remain, more water will make them less concentrated but will not remove them. The better starting point is trimming the woody core and cutting the flesh across its fibres. Baby spinach also tends to blend more easily than large mature leaves with thick stalks. Ingredient preparation is more effective than an unnecessarily long blending time.

For a less powerful machine, blend half the pineapple with the spinach and water first, then add the remaining fruit and banana. This creates a moving liquid base before the cold pieces enter. If it still struggles, use chilled rather than frozen banana; the flavour stays close even though the texture is lighter.

Keep the serving simple. A pineapple wedge can look attractive, but remove the tough rind from any piece intended to be eaten. Do not balance a large unpeeled chunk on the rim where it can tip the glass. A small mint leaf is optional, but the recipe does not require a garnish to explain its green colour.

What you'll need

  • 220 g prepared pineapple, chilled
  • 30 g baby spinach
  • 100 g peeled banana, frozen in slices
  • 150 ml cold water
  • 1 tbsp lime juice

Let's make it

  1. Wash the spinach thoroughly unless its packaging states it is ready to eat. Remove any tough stalks and discard damaged leaves.
  2. Blend the water and spinach first until the leaves are very finely broken down. Add the pineapple, frozen banana and lime juice.
  3. Blend until smooth, stopping to scrape the jug only with the machine switched off. Add a tablespoon of water if the frozen fruit prevents circulation.
  4. Taste, divide between glasses and serve while cold. The pineapple should remain the most obvious flavour.

Make it your own

Mango can replace the banana for a different tropical flavour, though the smoothie will be less creamy.

Use fresh pineapple or frozen pineapple labelled suitable for eating without cooking; follow any preparation instructions on the pack.

Keeping it fresh

Drink promptly. If keeping a portion, cover and refrigerate immediately at 5°C or below and use within 24 hours, or earlier according to ingredient guidance. Shake or stir before drinking.

Allergen notes

No major allergens intentionally included; check packaged ingredients and cross-contact advice