Deep-Fried Onion Rings with Cheese Core

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

Crispy onion rings wrapped around a melty cheese center, perfect for a fun appetizer. This american-inspired kid friendly ready in about 30 minutes pairs medium yellow onion, mozzarella cheese, all-purpose flour for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 280 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: 20 min Cook: 10 min Serves 4 American cuisine 280 cal/serving
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Ingredients

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Instructions

  1. Step 1: Cut 2 medium yellow onions into 1/2-inch thick rings, separating the layers. Place the rings in a bowl and sprinkle 1/2 cup shredded mozzarella evenly over them. Gently wrap each onion ring around the cheese to form a core, pressing the edges to hold the cheese inside.
  2. Step 2: In a shallow dish, combine 1/2 cup all-purpose flour, 1/4 cup cornstarch, 1/2 teaspoon baking powder, 1/2 teaspoon salt, and 1/4 teaspoon black pepper.
  3. Step 3: In another shallow dish, whisk 1 large egg with 1/4 cup milk until smooth.
  4. Step 4: Dip each cheese-wrapped onion ring into the egg mixture, then roll in the flour mixture, pressing gently to ensure even coating.
  5. Step 5: Heat 2 inches of vegetable oil in a deep pot to 375°F (190°C). Fry the onion rings in batches for 2-3 minutes per side until golden brown and crispy.

Frequently asked questions

How long does Deep-Fried Onion Rings with Cheese Core take to make?

Total time is about 30 minutes (20 min prep + 10 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 Deep-Fried Onion Rings with Cheese Core?

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 medium yellow onion from drying out.

Can I substitute ingredients in Deep-Fried Onion Rings with Cheese Core?

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 Deep-Fried Onion Rings with Cheese Core 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 Deep-Fried Onion Rings with Cheese Core?

American kid friendly 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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