Caramelized Onion Gruyere Tartines
Caramelized Onion Gruyere Tartines
Ingredients
- 1 baguette, medium, cut into 1/2 inch thick slices
- 1 tablespoon olive oil
- 3 tablespoons unsalted butter
- 2 yellow onions, large, thinly sliced
- 1 shallot, small, finely minced
- 2 garlic, cloves, minced
- 1/4 cup dry white wine, (such as Sauvignon Blanc) or vegetable broth
- 1/2 teaspoon fresh thyme leaves
- 1/2 teaspoon kosher salt, or to taste
- 1/4 teaspoon black pepper, freshly ground, or to taste
- 1 cup Gruyere cheese, grated
- 2 tablespoons fresh parsley, chopped, for garnish
Instructions
- 1
Preheat your oven to 400°F. Arrange the baguette slices in a single layer on a large baking sheet. Drizzle lightly with 1 tablespoon of olive oil.
⏱️ 5 min•🌡️ 400°F - 2
Bake the baguette slices for 5 minutes, or until lightly golden and crisp. Remove from the oven and set aside.
⏱️ 5 min - 3
While the bread bakes, melt 3 tablespoons of unsalted butter in a large skillet over medium-low heat. Add the thinly sliced yellow onions and cook, stirring occasionally, for 25-30 minutes, until deeply softened and golden brown. If they start to dry out, add a splash of olive oil.
⏱️ 30 min - 4
Add the minced shallot to the skillet and cook for 5 minutes, stirring, until softened and fragrant. Stir in the minced garlic and cook for 1 minute more, being careful not to burn it.
⏱️ 6 min - 5
Pour in the 1/4 cup of dry white wine or vegetable broth, scraping up any browned bits from the bottom of the skillet. Cook for 2 to 3 minutes, until the liquid has mostly evaporated. Stir in the 1/2 teaspoon of fresh thyme leaves, 1/2 teaspoon of kosher salt, and 1/4 teaspoon of freshly ground black pepper.
⏱️ 3 min - 6
Spoon the caramelized onion mixture evenly over the toasted baguette slices on the baking sheet. Top each tartine generously with the 1 cup of grated Gruyere cheese.
⏱️ 3 min - 7
Return the baking sheet to the preheated oven and bake for 5 to 7 minutes, or until the cheese is melted, bubbly, and lightly golden. Keep a close eye to prevent burning.
⏱️ 7 min - 8
Carefully remove the tartines from the oven. Garnish with 2 tablespoons of fresh chopped parsley before serving hot.
⏱️ 1 min
Kitchen Tools
Nutrition Facts (per serving)
Caramelized Onion Gruyere Tartines
Ingredients
- 1 baguette, medium, cut into 1/2 inch thick slices
- 1 tablespoon olive oil
- 3 tablespoons unsalted butter
- 2 yellow onions, large, thinly sliced
- 1 shallot, small, finely minced
- 2 garlic, cloves, minced
- 1/4 cup dry white wine, (such as Sauvignon Blanc) or vegetable broth
- 1/2 teaspoon fresh thyme leaves
- 1/2 teaspoon kosher salt, or to taste
- 1/4 teaspoon black pepper, freshly ground, or to taste
- 1 cup Gruyere cheese, grated
- 2 tablespoons fresh parsley, chopped, for garnish
Instructions
- 1
Preheat your oven to 400°F. Arrange the baguette slices in a single layer on a large baking sheet. Drizzle lightly with 1 tablespoon of olive oil.
⏱️ 5 min•🌡️ 400°F - 2
Bake the baguette slices for 5 minutes, or until lightly golden and crisp. Remove from the oven and set aside.
⏱️ 5 min - 3
While the bread bakes, melt 3 tablespoons of unsalted butter in a large skillet over medium-low heat. Add the thinly sliced yellow onions and cook, stirring occasionally, for 25-30 minutes, until deeply softened and golden brown. If they start to dry out, add a splash of olive oil.
⏱️ 30 min - 4
Add the minced shallot to the skillet and cook for 5 minutes, stirring, until softened and fragrant. Stir in the minced garlic and cook for 1 minute more, being careful not to burn it.
⏱️ 6 min - 5
Pour in the 1/4 cup of dry white wine or vegetable broth, scraping up any browned bits from the bottom of the skillet. Cook for 2 to 3 minutes, until the liquid has mostly evaporated. Stir in the 1/2 teaspoon of fresh thyme leaves, 1/2 teaspoon of kosher salt, and 1/4 teaspoon of freshly ground black pepper.
⏱️ 3 min - 6
Spoon the caramelized onion mixture evenly over the toasted baguette slices on the baking sheet. Top each tartine generously with the 1 cup of grated Gruyere cheese.
⏱️ 3 min - 7
Return the baking sheet to the preheated oven and bake for 5 to 7 minutes, or until the cheese is melted, bubbly, and lightly golden. Keep a close eye to prevent burning.
⏱️ 7 min - 8
Carefully remove the tartines from the oven. Garnish with 2 tablespoons of fresh chopped parsley before serving hot.
⏱️ 1 min