
Place cut-up peaches in large measuring cup or bowl. Add the chopped orange and lemon along with the orange and lemon zest. Weigh the amount of fruit and use the same weight of granulated sugar. For example, if the total amount of the pulp equals 1 pound, then 1 pound of sugar will be required.
Place pulp and sugar into a medium-sized stockpot. Stir. Bring mixture to a boil over medium-high heat, stirring frequently to prevent scorching. Immediately reduce heat and cook, uncovered, at a slow gentle boil until mixture thickens and reaches a temperature of 217°F on a candy thermometer (see Note below for alternative method for testing marmalade doneness). Stir mixture frequently to prevent scorching. Be patient, this can be expected to take an hour or so. The marmalade may be cooked to a temperature of 220°F but it will be a thicker marmalade and less pliable to spread than if it is cooked to 217°F.
When marmalade has reached 217°F (or 220°F, if you wish) , remove the stockpot from heat and skim off any foam that may still remain on the marmalade. Stir in cherries and Peach Schnapps (or almond flavoring), if using.
Let jars sit in the hot water for 5 minutes then, using jar lifter tongs, carefully remove the jars filled with marmalade, one at a time, upright and without tipping them over, and transfer them to a heat-proof cutting board, that has been covered with a towel, to cool completely. Listen for the “pop” or “ping” sound as the bottles seal over the next few minutes or hours. The lids of properly sealed jars will curve downward.
Cover jars with a towel to keep light out and let jars rest, undisturbed, on counter for 24 hours. Then, test each jar for proper sealing by very lightly pressing down on the center of each jar lid. If the lid is already pressed downward, and does not pop back up, it is properly sealed. Any jars that do not pass this test should be refrigerated and the marmalade used within a week or so.
Yield: Apx. 5 half-pints
*Note that it is difficult to give a precise cooking time for the marmalade since various factors, including the pectin level of the fruit and heat level of stove, can vary significantly and may affect cooking and marmalade-setting times. If you don’t have a candy thermometer or instant read thermometer to check doneness of marmalade at 217°F-220°F, place 2-3 freezer-proof saucers in the freezer before beginning to cook the marmalade. To test for doneness, place a small amount of marmalade on chilled saucer and swirl saucer around. Let marmalade sit, untouched, for about a minute, then gently push your finger through the marmalade. If the marmalade holds its shape (i.e., does not run back together after the finger has been removed from the marmalade), it is set and ready to bottle. If not, continue to cook mixture, repeating the “chill” test about every 3 minutes or so (always removing the pot from the heat while conducting the chill test) until the marmalade passes the “chill” test. Do not overcook as it will result in a very thick marmalade, dark in color.
It is recommended that the first “chill” test be conducted somewhere around the 45-50 minute point in the cooking process. It does not necessarily mean that the marmalade will be done in that timeframe and more than one “chill” test may need to be performed.
[Copyright My Island Bistro Kitchen]