I have been wanting to make an
onion tart, but I have been too busy for pastry. So, I bought a puff pastry and
improvised. Onion, thyme, and gruyere
really go well together. I added bacon,
because I love bacon. What doesn’t taste
better with bacon? If you don’t like
bacon, you can omit it. Or add roasted portabello
mushrooms instead.
Servings: About 15 roll-ups
Time: Thaw: 30 minutes, Prep: 20, Cook: 40 minutes
totalHardware: Measuring spoons and cups, a cutting board and knives, a skillet, a paper towel covered plate, a wooden spoon, a clean flat surface, a small bowl, a fork, a pastry brush, 2 baking sheets and parchment paper, cooling rack
-
6 slices of thick cut bacon
- 1 frozen puff pastry sheet
- 6 cups sliced onions
- A pinch of sugar
- 1 egg
- 6 ounces shredded gruyere cheese (the best you can afford)
- 2 teaspoons dried thyme
- Water
- Flour for dusting
-
Cover the baking sheets in parchment paper and set aside.
- Allow the pastry to thaw for about 30.
- Cook the bacon until it is crispy. Crumble the bacon onto the paper towel covered plate. Set aside. Clean the skillet.
- Slice the onions into rings. Put the onions, sugar, and enough water to cover the onions half way into the skillet on medium high. Stir often. Cook until the water has evaporated. As soon as the water has evaporated, turn the heat down to medium and monitor carefully. The onions will caramelize quickly. Don’t allow them to burn . This should take about 20 minutes. Remove from the heat and allow to cool slightly.
- Pre-heat the oven to 400°.
- Beat the egg and a tablespoon of water in the small bowl.
- Unfold the pastry sheet onto the lightly floured work surface.
- Brush the pastry sheet with the egg wash.
- Top the pastry with the cheese. Cover the cheese in the caramelized onion and thyme. Cover the onion with the crumbled bacon.
- Starting at a short side, roll the pastry up. Cut the roll into about ½ inch slices.
- Put the wheels, cut-side down, onto the baking sheets. You may need to re-shape them a little so that they are round.
- Brush the wheels with the egg wash.
- Bake for 15 minutes or until the wheels are golden brown.
- Rest the wheels on the cooling rack for about 10 minutes. Serve warm or at room temperature.
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