Smoked Herring with Dill and Crisp Onions

By AislePrompt Test Kitchen · Reviewed by AislePrompt Editorial · ·

Classic Belgian appetizer featuring smoked herring fillets atop caramelized onions and fresh dill, served with rye bread. This belgian-inspired seafood ready in about 25 minutes pairs smoked herring fillets, medium, thinly sliced yellow onion, butter for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 320 calories and feeds 4, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. 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.

★ 3.8 (12 ratings) Prep: 10 min Cook: 15 min Serves 4 Belgian cuisine 320 cal/serving
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Ingredients

Instructions

  1. Step 1: Heat 2 tbsp butter in a small skillet over medium heat. Add 1 medium sliced yellow onion and cook, stirring occasionally, for 15 minutes until deeply caramelized and golden.
  2. Step 2: Pat 8 oz smoked herring fillets dry with paper towels and season with 1/4 tsp coarse sea salt.
  3. Step 3: Place herring fillets on a serving plate, top with caramelized onions, and scatter 1/4 cup chopped fresh dill over the top.
  4. Step 4: Serve immediately with 4 slices crisp rye bread and lemon wedges on the side for squeezing.

Equipment for this recipe

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Frequently asked questions

How long does Smoked Herring with Dill and Crisp Onions take to make?

Total time is about 25 minutes (10 min prep + 15 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 Smoked Herring with Dill and Crisp Onions?

Cool to room temperature within 2 hours, then store in an airtight container in the fridge for up to 4 days. Reheat covered in a 350°F oven for 10-12 minutes, or microwave at 70% power in 60-second bursts to keep smoked herring fillets from drying out.

Can I substitute ingredients in Smoked Herring with Dill and Crisp Onions?

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 Smoked Herring with Dill and Crisp Onions 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 Smoked Herring with Dill and Crisp Onions?

Belgian seafood 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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