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Aubergine from an allotment harvest

PRESERVING GUIDE

Preserving Aubergine

Make the most of your aubergine harvest with careful short term storage and preparation.

Purple-skinned aubergine slices and cubes prepared for freezing

Freezing Aubergine

General preservation or storage guidance

Preparation About 20 minutes active, plus cooling and freezing

Firm, dark aubergines freeze best when sliced and briefly blanched in lemon-acidified water; use the softened slices in cooked dishes.

Method

  1. Choose firm aubergines with uniformly dark skins before the seeds mature. Wash, peel and cut into 8 mm (⅓ in) slices. Prepare only enough for one blanching batch at a time.
  2. Bring 4 litres of water containing 120 ml (½ cup) bottled lemon juice to a full boil. Lower the slices into the water and blanch for 4 minutes.
  3. Cool promptly in cold water, then drain thoroughly. Work promptly with the next small batch so cut aubergine does not stand and discolour.
  4. Pack slices with freezer paper between them if you want to separate portions, or pack loosely in freezer-safe containers with about 1 cm headspace.
  5. Seal, label and freeze promptly. Use in cooked dishes; freezing softens aubergine, so it will not keep a firm fresh texture.

Storage

Freezer at −18°C or colder · Keep continuously frozen; no exact quality period stated

Sources and scope

  • Freezing Eggplant — National Center for Home Food Preservation

    Method-specific source recorded in the prior content audit

Sliced aubergine pickled in a clear glass jar

Pickling Aubergine

General preservation or storage guidance

Preparation About 30 minutes active, plus cooling and flavouring

Aubergine pieces soften in a hot herb, garlic and citrus brine to make a tangy refrigerator pickle; it is not a pantry preserve.

Method

  1. For about 1 quart, measure 2 lb (900 g) aubergine, 2 cups vinegar labelled 5% acidity, 1 cup water, 1 tbsp sugar, 1 tbsp pickling salt, 2 tbsp minced fresh oregano or basil, 2 tsp citrus zest, ¼ tsp crushed red chilli, 4 garlic cloves and 2 small bay leaves.
  2. Wash the aubergines, trim off the stems and cut into even pieces. Leave tender skins on; peel only if they are tough. Prepare the garlic, herbs and zest.
  3. Bring the vinegar, water, sugar, salt, herbs, zest, chilli, crushed garlic and bay leaves to a boil in a stainless-steel or enamel pan. Lower the heat and simmer for 3 minutes, stirring to dissolve the sugar and salt.
  4. Pack the aubergine pieces snugly into clean, heat-safe jars. Pour over the hot brine to cover the pieces and distribute the aromatics.
  5. Cover and leave for about 1 hour, until cooled to room temperature, then refrigerate promptly. Keep the aubergine submerged and maintain the refrigerator at or below 5°C.
  6. Allow about 3 weeks in the refrigerator for the flavour to develop and consume within 3 months. This is a refrigerated pickle, not a room-temperature preserve.

Storage

Refrigerator at or below 5°C; not shelf-stable · Consume within 3 months; best flavour after 3 weeks refrigerated

Sources and scope

Aubergine caponata with tomato, celery and onion

Caponata for Aubergine

General preservation or storage guidance

Preparation About 45–60 minutes active, plus cooling

Caponata turns aubergine into a cooked sweet-and-sour dish with celery, tomato, olives and capers; chill or freeze it rather than treating it as a jarred preserve.

Method

  1. Wash aubergines, trim the stalks and cut the flesh into roughly 2 cm cubes. Cut celery and onion into small pieces; have chopped tomato, olives and capers ready.
  2. Cook aubergine in batches in a wide pan with a little oil until golden and tender; lift it out so the pan is not crowded.
  3. Soften the celery and onion in the same pan. Add the tomato and cook until pulpy, then stir in olives, capers and vinegar to make the characteristic tangy base.
  4. Return the aubergine and simmer gently until the pieces are tender and the liquid has reduced to a relish-like consistency. Season to taste; do not seal the hot mixture into jars for cupboard storage.
  5. Divide into shallow containers and cool quickly. Refrigerate within 2 hours and use within 48 hours, or freeze in meal-size portions; thaw in the refrigerator and reheat until piping hot.

Storage

Refrigerator at or below 5°C, or freezer in covered portions · Refrigerate within 2 hours and use within 48 hours, or freeze promptly

Sources and scope

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