Classic Buttered Noodles with Crispy Onion Topping
A comforting weeknight meal featuring tender spaghetti tossed in garlic butter, finished with a golden onion crunch. This american-inspired pasta ready in about 30 minutes pairs spaghetti, unsalted butter, finely sliced yellow onion for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 420 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.
Ingredients
- 8 oz spaghetti
- 4 tbsp unsalted butter
- 1/2 cup finely sliced yellow onion
- 2 tbsp chopped fresh parsley
- 1/4 cup grated Parmesan cheese
- 1/2 tsp salt
Instructions
- Step 1: Bring 4 quarts of water to a rolling boil in a large pot. Add 1/2 tsp salt and 8 oz spaghetti, stirring to prevent sticking. Cook for 8 minutes until al dente, then drain, reserving 1/2 cup pasta water.
- Step 2: While pasta cooks, heat 4 tbsp unsalted butter in a large skillet over medium heat until melted and foaming. Add 1/2 cup finely sliced yellow onion and cook for 5-6 minutes until golden brown and crisp, stirring occasionally to prevent burning.
- Step 3: Add drained spaghetti to the skillet with 1/2 cup reserved pasta water. Toss vigorously for 1 minute until the pasta is coated and the water thickens slightly. Remove from heat, then stir in 2 tbsp chopped fresh parsley and 1/4 cup grated Parmesan cheese until melted and glossy.
Frequently asked questions
How long does Classic Buttered Noodles with Crispy Onion Topping take to make?
Total time is about 30 minutes (15 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 Classic Buttered Noodles with Crispy Onion Topping?
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 spaghetti from drying out.
Can I substitute ingredients in Classic Buttered Noodles with Crispy Onion Topping?
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 Classic Buttered Noodles with Crispy Onion Topping 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 Classic Buttered Noodles with Crispy Onion Topping?
American pasta 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.
What others are saying
- ★★★★★
Simple and delicious. I'll be making this every week.
- ★★★★★
The crispy onions are the best part. Made it for date night and it was a hit.
- ★★★★★
This is the perfect comfort food! My kids loved it and it was so easy to make.
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