Chicken and Onion Sandwiches

by Editorial Staff

These sandwiches are prepared with grilled chicken and onions.

Summary

Course	Main Dish
Servings (Default: 4)

Ingredients

Chicken fillet without skin and bone – 450 g
Large onions (cut into strips) – 4 pcs.
Gruyere cheese (shredded on a grater) – 60 g
Baton – 4 slices 2.5 cm thick
Olive oil – 1 tbsp
Salt – 0.5 teaspoon.
Ground black pepper – 0.25 teaspoon.
Vegetable oil
Fresh parsley (chopped) – for serving

Instructions

Heat 1 tbsp olive oil in a large skillet over medium-low heat. Add onions, sprinkle with 1/4 teaspoon salt and 1/8 teaspoon pepper, cover, and cook 13-15 minutes, stirring occasionally, until softened.
Remove the lid, increase heat to medium-high, cook 3-5 minutes, stirring, until onions turn golden brown. Remove from heat.
Preheat grill to medium heat.
Season chicken fillet with salt and pepper. Place on grill rack, cover with lid, grill 15-18 minutes until charred stripes form on both sides and internal temperature reaches 74°C / 165°F. Transfer to plate and cover with foil to keep warm.
Lightly brush 4 baton slices with olive oil, place on grill, cover with lid, cook 1-2 minutes on one side until lightly charred. Remove from grill.
Cut the cooked chicken fillet into 1.5 cm thick slices.
On the charred side of each bread slice, layer chicken slices, caramelized onions, and Gruyère cheese. Place sandwiches on grill, cover with lid, cook 2 minutes until cheese melts. Top with chopped fresh parsley and serve immediately.

Enjoy your meal!

About Editorial Staff

The Boss Kitchen editorial staff oversees content review, fact-checking, and recipe verification across the site. Published articles pass through the editorial team before going live, ensuring ingredient lists, techniques, cooking times, and nutritional claims hold up in a home kitchen. The team coordinates contributions across the site writers, handles reader corrections, and maintains consistency in measurement conventions, safety guidance, and dietary labeling. Posts under this byline typically represent team-reviewed reference material, site announcements, or editorial roundups rather than individual-author features, and they are held to the same sourcing standards as bylined recipe and product coverage.