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Homemade Nectarine Jam: 7 Simple Steps

Golden homemade nectarine jam spread on toast

This nectarine jam recipe is perfect for beginners. With just a few simple ingredients, you can create a delicious and vibrant jam that captures the sweet taste of summer.

Ingredients

Scale
  • 2 pounds ripe nectarines, pitted and chopped
  • 4 cups granulated sugar
  • 1/4 cup lemon juice
  • 1/2 teaspoon butter (optional, to reduce foaming)
  • Pinch of salt

Instructions

  1. Prepare the Nectarines: Wash, pit, and chop the nectarines into small pieces.
  2. Combine Ingredients: In a large, heavy-bottomed pot, combine the chopped nectarines, sugar, lemon juice, butter (if using), and salt.
  3. Cook the Mixture: Bring the mixture to a rolling boil over medium-high heat, stirring constantly to prevent sticking.
  4. Test for Set: Place a small spoonful of jam on a chilled plate. Let it cool for a few seconds, then push it with your finger. If it wrinkles, it’s ready. If not, continue cooking and testing every few minutes.
  5. Process Jars: Ladle the hot jam into sterilized jars, leaving 1/4 inch headspace. Wipe the rims clean, place the lids on, and screw on the bands.
  6. Cool and Store: Let the jars cool completely on the counter. You should hear a popping sound as the jars seal. Check the seals by pressing on the center of the lid. If it doesn’t flex, it’s sealed.
  7. Store the jam in a cool, dark place for up to a year. Refrigerate after opening.

Notes

For a smoother jam, you can use an immersion blender to puree the nectarines slightly after they have cooked for about 15 minutes. Be careful when blending hot jam. Sterilize jars and lids by boiling them in water for 10 minutes before filling.