Step 1 - You will need:

1 cucumber
1 tsp lemon juice
1 tsp Sugar Syrup , also known as monin gomme
2 Coriander leaves
50 ml Gin
some cubed ice
1 knife
1 chopping board
1 blender
1 cocktail shaker
1 fine cocktail strainer
1 martini glass
1 25ml shot measure
1 50ml shot measure
1 5ml bar spoon / teaspoon
1 measuring jug
some measuring spoons

Step 2 - Chilled martini glass

Either put the martini glass in the freezer, or fill it with ice, add a little water, and leave it to one side to chill.

Step 3 - Cucumber

Use your knife to finely peel half the cucumber. Leave a little of the cucumber skin on to give the drink extra flavour and a light green hue. Don't throw all of the skin away - save a little to garnish the drink.

Step 4 - Add the ingredients

Dice the cucumber and add to the blender.
Add 50ml of gin
Next, a couple of coriander leaves
Add one teaspoon of lemon juice
and one teaspoon of sugar syrup.

Step 5 - Blend

Turn on the blender and blend for 10 seconds.

Step 6 - Pour

Add the contents of the blender to the mixing glass.

Step 7 - Ice

Fill the mixing glass with ice cubes

Step 8 - Shake

Put the top half of the cocktail shaker on. Slap it down firmly to seal. Hold the top and bottom, and shake vigorously for about 20 seconds.
Handy Hint
When there is condensation on the outside of the shaker and it feels very cold, then it's mixed.

Step 9 - Release

Tap the side of the shaker to loosen the two halves. Release the top by rocking it back and forth.

Step 10 - Double Strain

Open up the shaker and use the cocktail strainer and the fine strainer over the martini glass. Tap the fine strainer to encourage the drink through.

Step 11 - Garnish

Add a little of the left over cucumber skin to garnish.
Serve