Onion Ring Fritters with Spicy Aioli

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

Classic onion rings coated in a crispy batter and served with a spicy aioli sauce. This American-inspired quick recipe, ready in about 40 minutes, pairs yellow onion, all-purpose flour, cornstarch for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 230 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.

Prep: 25 min Cook: 15 min Serves 4 American cuisine 230 cal/serving
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Ingredients

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Instructions

  1. Step 1: Slice yellow onion into 1/4-inch thick rings and separate layers. Pat dry with paper towels.
  2. Step 2: Whisk 1/2 cup all-purpose flour, 2 tablespoons cornstarch, 1/2 teaspoon baking powder, 1/2 teaspoon salt, and 1/4 teaspoon black pepper in a bowl. Gradually whisk in 1/4 cup ice water until smooth.
  3. Step 3: Heat 2 cups vegetable oil in a deep skillet to 375°F. Dip each onion ring into batter, shaking off excess, and fry in batches for 2-3 minutes per side until golden brown. Drain on paper towels.
  4. Step 4: Mix 1/4 cup mayonnaise, 1 tablespoon sriracha sauce, and 1 teaspoon lemon juice in a small bowl until smooth.

Frequently asked questions

How long does Onion Ring Fritters with Spicy Aioli take to make?

Total time is about 40 minutes (25 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 Onion Ring Fritters with Spicy Aioli?

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 yellow onion from drying out.

Can I substitute ingredients in Onion Ring Fritters with Spicy Aioli?

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 Onion Ring Fritters with Spicy Aioli 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 Onion Ring Fritters with Spicy Aioli?

American quick meals 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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