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1
Bring boiling-water canner, half full with water, to simmer.
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2
Wash jars and screw bands in hot soapy water; rinse with warm water.
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3
Pour boiling water over flat lids in saucepan off the heat.
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4
Let stand in hot water until ready to use.
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5
Drain jars well before filling.
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6
Cut orange and one of the lemons into quarters; remove seeds.
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7
Cut pulp into very thin slices.
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8
(Or, finely chop or grind pulp.)
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9
Place pulp in large saucepan.
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10
Squeeze 2 Tbsp.
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11
juice from the remaining lemon.
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12
Mix with pulp in saucepan.
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13
Stir in water.
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14
Bring to boil on medium-high heat.
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15
Reduce heat to medium-low; cover.
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16
Simmer 20 min.
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17
Peel and pit the nectarines; finely chop or grind the pulp.
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18
Add nectarine pulp to fruit mixture in saucepan; mix well.
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19
Measure exactly 4-1/2 cups prepared fruit into 6- or 8-qt.
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20
saucepot.
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21
Stir in sugar.
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22
Add butter to reduce foaming.
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23
Bring mixture to full rolling boil (a boil that doesn't stop bubbling when stirred) on high heat, stirring constantly.
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24
Stir in pectin.
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25
Return to full rolling boil and boil exactly 1 min., stirring constantly.
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26
Remove from heat.
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27
Skim off any foam with metal spoon.
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28
Ladle immediately into prepared jars, filling to within 1/4 inch of tops.
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29
Wipe jar rims and threads.
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30
Cover with two-piece lids.
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31
Screw bands tightly.
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32
Place jars on elevated rack in canner.
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33
Lower rack into canner.
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34
(Water must cover jars by 1 to 2 inches.
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35
Add boiling water, if necessary.)
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36
Cover; bring water to gentle boil.
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37
Process 10 min.
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38
Remove jars and place upright on a towel to cool completely.
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39
After jars cool, check seals by pressing middles of lids with finger.
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40
(If lids spring back, lids are not sealed and refrigeration is necessary.)