Whiskey Marmalade UK Style as requested.
 

1.4 kg (3lb) Seville Oranges
Juice of 2 lemons
2.8 litres (5pints) water
2.7 kg (6lb) sugar.
Generous 1/4 cup whiskey

Wash and dry fruit. Cut in 1/2 and squeeze the juice out. Place the pips in a muslin bag and tie them safely inside.

Slice and shred the oranges or coarsely chop in a food processor.

Put in a pan along with lemon juice, water and pips. Bring to boil and simmer gently until the peel is really soft. This will take about 11/2 -2hrs. Don't add the lemon skins because they take a lot longer to soften than orange skins.

Lift out the pips, squeezing them against the side of the pan with a wooden spoon. Remove from the heat and add the sugar and stir until it is all dissolved. Return to the heat and boil rapidly for 15-35 minutes

Test for setting by placing a drop of juice onto a cold saucer/plate and allow to cool. Gently push the drop with your finger and if a "skin" creases ahead of your finger while sliding into the drop then setting is more or less reached. I have noted that the boiling action becomes more syrupy as setting time is reached. It remains a bit of trial and error but you can always re boil the marmalade to reduce the liquid a bit.
Remove from the heat and sterilise your jars before filling with the cooled, (not cold) marmalade.

Enjoy
Viv AKA stitchingcrazy

Sorry left out the addition of the most important bit. Just add whiskey during the final rapid boil.

Thanks for the recipe. I am definately going to try it.

Looks fabulous - will try it soon.

May I ask you what pips are?

I was wondering what pips are too but I also have no idea what a Seville Orange is.....Is that like a blood orange or a Valencia?

I was going to ask what pips are also.

Pips are the seeds within the orange. Seville Oranges are seasonal, (I got them from about November to Jan last time) and are best for marmalade making. They contain more pips/seeds than other types and the pips have the pectin in them to aid the setting of the marmalade.

do you use the orange juice in the marmalade?

Yes you do use the orange juice in the marmalade. I didn't write it very well did I? Sorry about that. It was late at night and I was tired. Hope all goes well