At the end of last summer I spent five glorious days in Sicily learning how to put sunshine in a jar. It’s easy. Take a ridiculously large amount of perfectly ripe Sicilian tomatoes. Cut them up. Leave them in the sun for 4 days to reduce down to about one tenth of their original volume. Put them in a jar and save it for a gloomy February day.

Watch as these Sicilian tomatoes are cooked, drained, milled, and then spread out on tables in the sun in this video by food writer Elizabeth Minchilli. Making tomato paste, called stratto, is a summer tradition in Sicily. It requires good weather and slightly inclined wooden boards that absorb and drain the liquid, readying the preserves for their storage in a cool, dry place until winter.

Next: How to make ketchup, an easy recipe for all ages.

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