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Drinks · Part 2 of 3: Instructions

Blueberry Cardamom Creamy Cashew Lassi Smoothie with Whipped Cream Step-by-step instructions

Blender jar layered with blueberries, banana, cashews and yogurt before blending
Prep
Cook
Total
Serves
2

Before you start

Gather everything before you start blending, so the process moves quickly and the lassi stays cold. Chill the yogurt, the glasses and the white chocolate block for at least 10 minutes. Slice the banana and chop the cashews on a clean cutting board, then set them near a bowl of fresh blueberries.

Whip the heavy cream to soft peaks and transfer it to a piping bag fitted with a star tip, then refrigerate it until you are ready to pipe. Set out your blender jar, check that the lid seals well, and keep a small spoon handy for tasting. Working in this order means every component is ready when the blender stops, and nothing sits out long enough to lose its freshness or its cold, creamy texture.

Ingredients at a glance (8)
  • 1 cup fresh blueberries, plus a few extra for the sauce
  • 1 ripe banana, sliced
  • 1/3 cup raw cashews, chopped
  • 1 cup plain whole-milk yogurt
  • 2 tbsp honey, plus a drizzle for the sauce
  • 1/4 tsp ground cardamom, a pinch to taste
  • 1 oz white chocolate, for grating
  • 1/2 cup heavy cream, whipped to soft peaks

Instructions

Prepare the layers

  1. Prepare the fruit and nuts
    Put on clean gloves if you like, then slice the banana on a wooden cutting board. Chop the cashews finely and set them beside a bowl of fresh blueberries. Keep the prepared ingredients close together so they go into the blender in order.
    Look for Banana rounds are even and cashew pieces are roughly the same size.
    Tip Chop the cashews by hand rather than in a food processor, so you do not turn them into paste.
  2. Grate the white chocolate
    Hold a block of white chocolate against the fine side of a box grater and grate it over a sheet of parchment or the cutting board. Let the fine white curls collect in a small pile. Set them aside in the refrigerator until serving.
    Look for The curls are fine and feathery, with no large chunks.
    Tip Chill the chocolate for 10 minutes first, so it grates cleanly instead of smearing.

After slicing the banana, chopping the cashews and grating the white chocolate, you should have three neat piles on the board: banana rounds, finely chopped nuts and fine white curls. The blueberries should be washed and dry, and the yogurt should be cold.

Check that the grated chocolate is fine and feathery rather than chunky, because coarse pieces will not look as delicate on top of the glass. Keep the chocolate chilled while you work. Once everything is organised and close at hand, the blender jar is ready for the layering, which keeps the process quick and the textures clean.

Blend the lassi smooth

  1. Layer the blender jar
    Add the blueberries, sliced banana, chopped cashews, yogurt, a drizzle of honey and a pinch of ground cardamom to the glass blender jar, in that order. Secure the lid firmly before blending.
    Look for Everything sits in distinct layers, with the blueberries at the bottom.
    Tip Start with the blueberries at the base so the blades catch the fruit first.
  2. Blend until smooth
    Blend on high speed until the mixture is completely smooth and a vivid purple-pink. Stop the blender and scrape down the sides once if needed, then blend briefly again. Taste and add a little more honey or cardamom if you want it sweeter or more aromatic.
    Look for The lassi is smooth, thick and an even vivid purple-pink with no fruit specks.
    Tip Blend for about 1 minute on high to fully break down the cashews.

After blending on high speed, the lassi should look smooth, thick and an even vivid purple-pink, with no specks of blueberry skin or banana left visible. Lift the lid and check the bottom of the jar for unblended pieces of cashew. If you see any, scrape the sides and blend briefly again. Taste a spoonful: it should be sweet from the banana and honey, tangy from the yogurt, and gently fragrant with cardamom. If it tastes flat, add a little more honey or a tiny extra pinch of cardamom and blend again for a few seconds before pouring.

Assemble the glasses

  1. Layer the sauce and pour
    Spoon a few fresh blueberries with a drizzle of honey into the bottom of each clear glass and crush them lightly into a dark sauce. Sprinkle a layer of grated white chocolate over the sauce. Pour the blended lassi slowly over the top.
    Look for A dark blueberry swirl and white chocolate curls show at the bottom of the glass.
    Tip Pour the lassi down the side of the glass to keep the layers from mixing.
  2. Pipe the whipped cream crown
    Fill a piping bag fitted with a star tip with the whipped cream. Squeeze a tall swirl over the top of each glass so it forms a thick, fluffy crown above the purple lassi. Finish with a few more white chocolate curls and serve immediately.
    Look for The cream stands in a tall, soft swirl that holds its shape.
    Tip Whip the cream until it holds soft peaks so it pipes without slumping.

Before piping the cream, each glass should show a dark blueberry sauce at the bottom with a light dusting of white chocolate curls over it, and the purple lassi should fill the glass without spilling over. The sauce should be concentrated and glossy, not watery. Check that the glass is cold and that the lassi has not separated while you were arranging the layers. The cream crown should hold its tall shape when you lift the bag away, so pipe it while the cream is still well chilled and stiff. Serve the glasses at once so the layers stay sharp.

Common mistakes

The most common mistake is blending for too short a time, which leaves small pieces of cashew in the lassi and gives it a gritty mouthfeel instead of a silky one. Blend on high speed for about a full minute, and scrape the sides of the jar if the mixture clings. Another frequent problem is using very firm bananas, which blend less sweetly and leave the colour duller.

Choose bananas that are fully ripe with brown spots for the best flavour. Avoid pouring the lassi into the glass before the blueberry sauce and chocolate are in place, because the layers will mix and the swirl will disappear. Finally, do not let the whipped cream sit at room temperature.

How to tell it’s done

The lassi is ready when it is completely smooth, thick enough to coat the back of a spoon and an even vivid purple-pink from edge to edge. There should be no visible pieces of cashew or blueberry skin, and the texture should be creamy and cool.

Taste it before you pour: the sweetness of the banana and honey should balance the tang of the yogurt, with a clear cardamom note in the background. The whipped cream is ready when it holds soft peaks and pipes into a tall, stable swirl. No cooking is involved, so no internal temperature applies; the cue to watch for is a smooth, glossy, fully blended mixture served cold.

Coming up in Part 3: common questions

  • Can this lassi be made without a high-speed blender?
  • Which yogurt gives the best texture for this lassi?
  • Can the whipped cream be replaced with something else?
  • Why does the blueberry sauce sink to the bottom of the glass?
  • How do you keep the whipped cream crown tall in the glass?

Also in Part 3: variations (Mango version, Chocolate-free crown, Thicker spoon lassi, Nutty almond twist), storage and make-ahead, and the printable recipe card.

Up next · Part 3 of 3

4 variations · storage & make-ahead · 5 answers · printable card

Tips, FAQ & printable recipe (Part 3)← Back to the ingredients (Part 1)