add publicdomainrecipes.com recipes

content/jam.md

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+---
+title: Jam
+tags: ['fasting', 'fruit', 'jam']
+date: 2025-09-25
+author: "pestanzul"
+---
+
+![Jam](/pix/jam.webp)
+
+- ⏲️ Prep time: 10 min
+- 🍳 Cook time: 2 h
+
+## Ingredients
+
+- 1 kg fruit of your choice
+- 1 kg sugar
+
+## Directions
+
+1. Cut the fruit in small pieces and place it in a pot.
+2. Cook on the stove, on low fire.
+   Stir very often so that the fruit doesn't burn.
+3. As soon as some juice collects on the bottom of the pot, add sugar and stir until it is no longer visible.
+4. Keep the pot on low fire, stirring often and in particular the bottom, which will otherwise burn very easily.
+5. Jam _must boil_ for _at least 2 hours_.
+   This is necessary to inactivate botulinum spores that may be present in the fruit, which could otherwise produce deadly toxins.
+6. If fruit pieces are still visible, you may blend them.
+7. Pour boiling-hot jam in glass jars and close them immediately.
+   They will go vacuum in a few minutes: you can then store your jam for many months.