Blood Orange Marmalade

• 7 to 9 blood oranges (2 lbs)
• 10 cups water
• 8 cups white sugar
• 2 tablespoons Cointreau or Grand Marnier
• sterilized canning jars and lids
• candy thermometer

1. Cut each orange in half and then slice as thinly as possible with a very sharp knife.
2. Put the sliced orange slices in a large heavy bottomed pot.
3. Add the water and bring to a boil. Then lower the heat and simmer for 20 minutes.
4. Turn off the heat, add the sugar and mix. Then leave overnight to develop flavor and color.
5. The next day; bring the mixture to boil and simmer until the mixture reaches the jelling point of 220 degrees. Use a candy thermometer. This will take longer than you think, so the thermometer is an accurate way of knowing when the jell point is reached.
6. Stir in the orange liquor (Cointreau or Grand Marnier).
7. In the meantime, have canning jars and lids sterilized and ready.
8. Carefully spoon the hot marmalade into each jar, wipe the rims of each jar and screw on the band or seal the jar.

oranges, water, white sugar, lids, thermometer

Taken from food52.com/recipes/8667-blood-orange-marmalade (may not work)