Spris (layered fruit juice)

Step 1: Blend 1 ripe avocado with 2 tsp sugar and ¼ cup cold water until completely smooth and thick. Spoon it into a jug and rinse the blender.

Step 2: Blend 9 oz ripe mango flesh with 2 ½ tbsp cold water until smooth, adding a splash more water only if the blades stick. Pour into a second jug and rinse the blender.

Step 3: Blend 9 oz ripe papaya flesh with the juice from half the 1 lime until smooth. Taste each purée and add a little sugar if the fruit is not very sweet.

Step 4: Chill the three purées for 10 minutes if your fruit was at room temperature; cold purées hold their shape better.

Step 5: Spoon the avocado into the bottom of 2 tall glasses. Pour the mango slowly over the back of a spoon held just above the avocado, then the papaya the same way, so each settles on the one below. Pouring straight from the jug is the usual mistake; it punches through and mixes the layers.

Step 6: Hang a lime wedge on each glass and serve at once with a long spoon and a wide straw. Avocado darkens if it stands, so make spris just before drinking.