Sardine and Avocado Mash | IDDSI Level 5 Recipe

IDDSI Level 5 (Minced and Moist) | 10 minutes | Easy

Canned sardines are one of the most affordable Omega-3 sources available in Hong Kong — one can (approx 100g) contains about 1.5g of DHA and EPA combined. Paired with the monounsaturated fats of ripe avocado, this combination supports cardiovascular and cognitive health in elderly patients. No cooking required — ready in 10 minutes. Serve alongside congee or use as a spread.

Ingredients (serves 1–2)

Main ingredients:

• Canned sardines in olive oil 1 can (approx 100g, drained)
• Ripe avocado ½ (approx 80g flesh)

Seasoning:

• Lemon juice ½ tsp
• Salt, to taste
• Black pepper, a pinch (optional)
• Extra virgin olive oil ½ tsp (optional, for extra creaminess)

Method

1. Remove sardines from can, draining oil thoroughly. Using your fingers, carefully locate and remove all visible bones including the spine and any pin bones.
2. Halve the avocado, remove the stone, and scoop out the flesh with a spoon.
3. Place sardines and avocado in a bowl; mash together firmly with a fork until uniformly combined with no large lumps.
4. Season with lemon juice, salt, and black pepper; stir again to combine.
5. If texture is too dry, add a small amount of olive oil to adjust. Particles should not exceed 4mm.
6. Serve immediately (avocado oxidises and discolours quickly).

Texture Testing

Fork-pressure test: Passes Level 5 — easily mashed under light fork pressure; remains moist and cohesive without falling apart; no particles larger than 4mm.

Cohesion check: Holds shape when lifted by spoon; does not flow or spread freely.

Moisture check: Mash remains moist throughout — no dry or grainy texture.

Safety Notes

⚠️ Bone removal is critical — Even canned sardines may retain small pin bones. Run your fingers carefully along every piece of fish and remove all bones before mashing. This is the primary safety requirement for Level 5 fish preparations.

⚠️ Avocado ripeness — Use only fully ripe avocado (yields gently to thumb pressure). Unripe avocado is too firm to mash to Level 5-compliant texture.

⚠️ Serve immediately — Avocado oxidises rapidly on air exposure, causing browning (no nutritional loss, but affects appetite). Serve within 30 minutes of preparation.

⚠️ Sodium content — Standard canned sardines are relatively high in sodium. For patients with hypertension, choose “low salt” or “no added salt” varieties.

Purchasing in Hong Kong

• Canned sardines: ParknShop or Wellcome; choose “in olive oil” (Omega-3 more accessible than tomato sauce versions). King Oscar, BELA, or local brands all work.
• Avocado: Imported produce section at supermarkets. Choose Hass variety (dark skin); ripe when slightly soft to the touch.

Nutrition Notes

Per serving (approx 180g): ~285 kcal, protein 16g, Omega-3 fatty acids (DHA+EPA) ~1.5g, monounsaturated fat ~9g. DHA supports neural cell membrane health in patients with mild cognitive impairment. Omega-3 fatty acids help reduce triglycerides in patients at cardiovascular risk. Lemon juice adds vitamin C, which may also enhance non-haem iron absorption from the sardines.