Instructables

G&T Jelly

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Picture of G&T Jelly
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Glowing, quivering and looking more like an alien invasion than something you should put in your mouth, gin & tonic jelly (jello for those in North America) packs a real punch.

Inspired by Bompas & Parr (the Blumenthal's of the jelly world) this uses the naturally flourescent quinine in Indian tonic water to make a luminous loaded dessert. All you need is some simple ingredients, a bit of patience, and a UV light to show the whole thing off.


Ingredients (makes 500 ml of jelly) :
  • 150 ml gin
  • 350 ml Indian tonic water (containing quinine)
  • A splash of rose water (optional)
  • 5 leaves of gelatine
You'll also need a measuring jug, small saucepan, heatproof bowl, seive and a jelly mould, preferably metal since this is best for releasing the jelly. I used an aluminium castle cake tin.


First, measure out the gin, tonic & rosewater into a jug. Cut the gelatine leaves into a small pieces and put them in your heatproof bowl with enough of the G&T mix to just cover them. Leave this for about ten minutes until the gelatine has absorbed the liquid and is soft and floppy.

Place the bowl over a saucepan of boiling water (just an inch or so of water to create a double boiler, making sure the water doesn't touch the bottom of the bowl). Heat the gelatine, stirring occasionally, until it melts and you have a clear liquid. Take the bowl off the heat and strain the gelatine to catch any lurking lumps. Pour in the rest of the G&T mix and stir briefly to combine.

Pour the jelly into your mould. Put the mould in the fridge and allow the jelly to set. This takes around 5 hours, until the jelly is wobbly but not sticky on top and doesn't slip at the sides if you tilt the tin. I left mine overnight to be safe.

When set the jelly can be unmoulded. Run a small knife around the edges of the mold to loosen it and then dip the mold in warm water for about 10 seconds, to melt the very outer layer of the jelly and help it slip out. Place a flat plate on top of the mould, invert the whole thing, and liftthe mould up, shaking it a little if the jelly is sticking. It's best to moisten the plate a bit before turning out the jelly onto it, as this stops it sticking immediately and lets you reposition it a little for perfect presentation.

To get the full impressive effect, serve the jelly in a dark room lit with a blacklight and watch it glow!


(Beware, this is a strong jelly, the very essence of a stiff G&T.  It's perfect for jelly shots but if you're serving larger quantities I'd substitute a little of the tonic for a simple sugar syrup to take some of the edge off.)
Natalina made it!9 months ago

Thanks for the inspiration! I made this over the weekend for a futuristic themed party. I am in the US, so I followed the instructions on the Knox box, which calls for 4 packets of gelatin to 4 cups of liquid. As there was alcohol I used 3.5 cups of liquid instead, and the texture turned out fine. I also found that the sweetness and flavor of the tonic water faded in the cooling process, and what tasted great before putting in the fridge tasted a bit bland later. I also added lime juice, but could have added more. If I do it again, for my taste I'd add a generous amount of lime juice and sugar before cooling. Anyways, great idea, they looked awesome and were a hit at the party!

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JustinPayne3 years ago
Just the image of the Jello mold made it worth coming here. I just have a question about the cooking temp. I see you use a double boiler but the water is boiling. Alcohol evaporates at around 175 deg F. Can I assume your mixture never gets above that? It might be even better to add the alcohol after you take the jello off the boil and let it cool for a bit. If you put the Gin and Tonic after, you will probably get bubbles, which might still be cool but for no bubble, I'd put the tonic in with the gelatin.
HollyHarken3 years ago
Does anyone know the Knox equivalent to gelatin sheets? We don't have sheets here in the USA. Ours comes in a box of one ounce envelopes. Also I wonder if Lemon or Lime boxed jello would also work. As I recall my ex husband loved a bit of lime in his G&T.
cluracon (author)  HollyHarken3 years ago
If you can't find gelatin sheets you should be able to follow the directions on your jelly, just using the G&T mix instead of liquid. Generally you need a bit more gelatin than usual when making alcoholic jelly. According to this site, the conversion is 1 packet of Knox equals 3 1/2 gelatin sheets. Using a lime jelly sounds great, & it would help cut through the bitter tonic. Good luck x
murc3 years ago
Thanks for sharing, but shouldn't there be a splash of lemon juice in there? Or maybe some lemon zest embedded in the jelly, for visual effect also!?
cluracon (author)  murc3 years ago
Some lemon or lime juice would help cut the bitter tonic, though you'd lose the alien look of transparent jelly. I like the zest idea though, you might need to let it gradually set in layers to get it properly embedded, instead of sinking to the top.
sbarker23 years ago
Challenge accepted :D
sunshiine3 years ago
Nice! Thanks for sharing.
HurcanDewit3 years ago
brilliance in gelatinous form!
mikeasaurus3 years ago
yum G&T's are a favourite of mine...and now in jelly form!