Here’s a simple, bold-flavored sandwich built exactly how you described — messy, sharp, and satisfying 🥪
🥪 Toasted Bun Sandwich with Mayo & Raw Onions
🧾 Ingredients (1 sandwich)
- 1 sturdy sandwich bun (brioche, Kaiser roll, or hamburger bun)
- 2–3 tbsp mayonnaise (don’t be shy!)
- ¼–½ small raw onion, thinly sliced (white or yellow for sharp bite, red for milder sweetness)
- Salt, to taste
- Freshly cracked black pepper (optional)
Optional add-ins (if you want to level it up):
- Sliced tomato
- Crisp lettuce
- Cheese (cheddar, Swiss, or provolone)
- Sliced deli meat or a burger patty
- A splash of vinegar or squeeze of lemon
🔥 Instructions
- Toast the bun
Slice the bun and toast cut-side down in a skillet over medium heat until golden and crisp.
(You can also use a toaster oven or broiler.) - Coat generously with mayonnaise
While the bun is still warm, spread a thick layer of mayo on both halves. Let it melt slightly into the toasted surface. - Add the onions
Pile the thinly sliced raw onions generously on the bottom half.
Sprinkle lightly with salt (this softens the bite and boosts flavor). - Finish & close
Add pepper if desired. Close the sandwich and press gently.
💡 Pro Tips
- Soak onion slices in cold water for 10 minutes if you want them milder but still crisp.
- A pinch of flaky salt on top of the onions makes a big difference.
- If adding protein (like a burger or deli turkey), place it between the mayo and onions so the bun doesn’t get soggy.
If you’d like, I can also turn this into:
- A diner-style classic
- A Southern-inspired version
- A spicy version
- Or a gourmet twist
What vibe are you going for?
