Ingredients
Scale
For the Crust:
- 4 large russet potatoes
- 2 tablespoons olive oil
- 2 large yellow onions, thinly sliced
- 1 teaspoon sugar
- 1 teaspoon salt
- 1/2 teaspoon black pepper
- 1/2 cup beef broth
- 1 cup shredded Gruyère cheese
- 1/4 cup grated Parmesan cheese
- 2 tablespoons chopped fresh thyme
- 2 tablespoons butter
Instructions
1. Prepare the Crust:
- Preheat oven to 400°F (200°C). Scrub potatoes and pierce with a fork. Bake for 45-50 minutes until tender.
- While potatoes bake, heat olive oil in a skillet over medium heat. Add onions, sugar, salt, and pepper. Cook for 20-25 minutes, stirring occasionally, until caramelized.
- Add beef broth to the onions and simmer for 5 minutes until liquid reduces slightly. Remove from heat and stir in thyme.
- Cut baked potatoes in half lengthwise and scoop out the flesh, leaving a 1/4-inch shell. Mash the potato flesh with butter.
- Mix the mashed potatoes with the caramelized onion mixture. Stuff the potato shells with the filling.
- Top with Gruyère and Parmesan cheeses. Broil for 3-5 minutes until cheese is bubbly and golden.
Notes
You can customize the seasonings to taste.