True-Blue French Onion Soup
A deeply caramelized onion soup made with slowly cooked onions and a rich beef stock, embodying the authentic French technique without modern substitutions. This french-inspired soups ready in about 85 minutes pairs Yellow onions, Butter, Beef stock for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 320 calories and feeds 6, 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
- 1 lb Yellow onions
- 3 tbsp Butter
- 4 cups Beef stock
- 1/2 cup Dry white wine
- 8 slices Baguette slices
- 1 cup grated Gruyère cheese
- 1/2 tsp Salt
Instructions
- Step 1: Thinly slice 1 lb yellow onions and cook in 3 tbsp butter over medium-low heat for 45-50 minutes, stirring occasionally until deeply caramelized and golden brown, not browned.
Equipment for this recipe
Top-rated tools to make this recipe successfully.
Frequently asked questions
How long does True-Blue French Onion Soup take to make?
Total time is about 85 minutes (30 min prep + 55 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 True-Blue French Onion Soup?
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 onions from drying out.
Can I substitute ingredients in True-Blue French Onion Soup?
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 True-Blue French Onion Soup for a different number of people?
The recipe is written for 6 servings. Multiply each ingredient by (your serving target / 6). 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 True-Blue French Onion Soup?
French soups 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
- ★★★★★
Absolutely wonderful.
- ★★★☆☆
Decent recipe but nothing special. Might try a different version.
