- 2 lemons (washed, thinly sliced, seeds reserved)
- 2 limes (washed, thinly sliced)
- 2 oranges (washed, thinly sliced, any seeds reserved)
- 1 grapefruit (ruby, washed, thinly sliced, seeds reserved)
- 5 cups water
- 8 inch square piece of muslin
- 7 cups sugar (approximately)
- jam (jars, sterilized)
- Place lemon, limes, oranges and grapefruit in large wide saucepan so that fruit is no more than 1 inch deep. Add enough water to just cover the fruit (approximately 5 cups).
- Tie reserved seeds into muslin square using kitchen string. Add to pan with fruit. Cover, and bring to a boil. Reduce heat slightly and simmer, covered for 1 hour 30 mins or until fruit and rind pieces are very tender. You should be able to squash the rind easily with your finger. Remove muslin bag and discard.
- Using a measuring cups, measure the total quantity of fruit in the saucepan. Return to pan with an equal quantity of sugar. Stir well over low heat to dissolve sugar. Use a pastry brush dipped in water to brush down any traces of sugar from sides of pan. Place saucers/small plates in freezer to chill.
- Bring fruit mixture to a boil. Simmer gently over medium heat until marmalade becomes thick and drops off the spoon in large drops. To test for setting quality; remove from heat, drop some of the marmalade onto chilled saucer. Once marmalade cools to room temperature, push gently with finger to see if a skin has formed and wrinkles slightly. If it does, then marmalade has reached setting stage. If not, return to heat and continue to cook another 10 mins before testing again.
- Pour into hot sterilized jam jars right to the top as the marmalade will shrink on setting. Seal jars when marmalade is cold. Label jam and store in a cool dark place.
- Note: to sterilize jars, place in a 250°F oven for 30 mins. Place on a baking tray for easy removal from the oven. Alternatively place in large saucepan of water; bring to a boil. Simmer for 10 mins and dry thoroughly before filling with jam.