Spiced Smoked Herring with Pickled Red Onion

By , Test Kitchen Director · Reviewed by AislePrompt Editorial · ·

Bold smoked herring accented with warming spices and paired with sharp, tangy pickled red onions for a flavorful appetizer or snack. This seafood-inspired snacks ready in about 20 minutes turns smoked herring fillets, medium red onion, white vinegar into a satisfying snack for between meals, packed lunches, or game-day spreads — minimal active time and easy to scale up for a crowd. Each serving lands at about 220 calories and feeds 4, so it fits into lunchboxes, road trips, or an afternoon-energy gap without derailing the day. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Prep: 15 min Cook: 5 min Serves 4 Seafood cuisine 220 cal/serving
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Ingredients

Instructions

  1. Step 1: Thinly slice 1 medium red onion into rings and place in a heatproof jar or bowl.
  2. Step 2: In a small saucepan, combine 1 cup white vinegar, 1/2 cup water, 2 tbsp sugar, 1 tsp salt, 1 tsp whole black peppercorns, 1 tsp mustard seeds, 1/2 tsp allspice berries, 1 whole bay leaf, and 1/4 tsp cayenne pepper. Bring to a boil over medium heat, stirring until sugar and salt dissolve.
  3. Step 3: Pour the hot pickling liquid over the sliced red onions, ensuring they are fully submerged. Let cool to room temperature, then refrigerate for at least 2 hours to develop flavor.
  4. Step 4: Arrange 10 oz smoked herring fillets on a serving plate and garnish with the pickled red onions.
  5. Step 5: Serve chilled or at room temperature as a bold, smoky appetizer paired with crusty bread or crackers.

Equipment for this recipe

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Frequently asked questions

How long does Spiced Smoked Herring with Pickled Red Onion take to make?

Total time is about 20 minutes (15 min prep + 5 min cook). Most home cooks find this fits comfortably into a weeknight; double the batch on Sunday for two dinners.

How do I store leftover Spiced Smoked Herring with Pickled Red Onion?

Store in an airtight container at room temperature for crisp items, or in the fridge for anything dairy- or produce-based, for up to 3–5 days. Re-crisp baked snacks in a 300°F oven for 5 minutes if they soften.

Can I substitute ingredients in Spiced Smoked Herring with Pickled Red Onion?

Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.

How do I scale Spiced Smoked Herring with Pickled Red Onion for a different number of people?

The recipe is written for 4 servings. Multiply each ingredient by (your serving target / 4). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.

What goes well with Spiced Smoked Herring with Pickled Red Onion?

Seafood snacks like this pair well with a simple grain (rice, couscous, or crusty bread), a quick salad with acid (lemon vinaigrette, pickled onions), and a pan sauce or yogurt-based dip. Tap "Plan a meal with the AI" to get specific side suggestions.

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