French Onion Crostini

READY IN: 2hrs 10mins
Recipe by Lainey39

These make a delicious appetizer. Recipe is from Rachael Ray.

Top Review by Kittencalrecipezazz

this is wonderful, I ran out of Swiss cheese so I subbed mozza, also add in fresh chopped garlic to the onions and used 1/2 teaspoon dried thyme, I also sprinkled parmesan cheese on top of each piece before baking, thanks Lainey!

Ingredients Nutrition


  1. In large, heavy pot or skillet, warm 1/4 cup olive oil over medium-low heat.
  2. Add the onions and 1 sprig thyme and cook, stirring every 10 minutes or so (if they start sticking to the pan, add a splash of water), for about 1 1/2 hours.
  3. Season to taste with salt and pepper.
  4. Meanwhile, preheat the oven to 350 degrees.
  5. Arrange the baguette slices on a baking sheet and brush on both sides with the remaining 2 T olive oil.
  6. Season with salt and pepper.
  7. Bake until crisp, 10-15 minutes.
  8. Place about 1 T cheese on each toast; bake until the cheese is melted, about 5 minutes.
  9. Remove the leaves from the remaining thyme sprig and chop.
  10. Top each toast with the carmelized onions and chopped thyme.

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