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Oscar Tomato Tarts | Grandbaby Cakes
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4.08 from 63 votes

Tomato Tarts Recipe with Puff Pastry

This Easy Tomato Tart Recipe on Puff Pastry add tender caramelized onions, fresh tomato and spiced pepperjack cheese to the flakiest mini butter crust! 
Prep Time25 minutes
Cook Time20 minutes
Total Time45 minutes
Course: Appetizer
Cuisine: American
Servings: 8 servings
Calories: 417kcal

Ingredients

  • 2 tablespoons unsalted butter
  • 1 tablespoon olive oil
  • ½ onion sliced
  • Salt and pepper to taste
  • 2 sheets puff pastry thawed according to package instructions
  • 1 large egg plus 1 teaspoon water beaten
  • 2 large tomatoes thinly sliced
  • ½ cup pepperjack cheese shredded
  • Fresh parsley and herbs

Instructions

  • Melt butter and olive oil in skillet over medium heat.
  • Add sliced onions to pan, season with salt and pepper and cook, continuing to stir, until tender and golden brown (this process takes a while- up to 20 minutes) then set aside.
  • Preheat oven to 425 degrees.
  • Using a round cookie cutter, cut circles of dough out of puff pastry and place on a parchment paper lined baking sheet.
  • Brush egg wash on each pastry circle then top each with a tomato slice in the direct center.
  • Next add caramelized onions on top of each tomato slice and sprinkle shredded cheese.
  • Bake for 16-20 minutes or until tarts are puffy and golden brown and cheese has turned golden and melty. Top with parsley and herbs if you would like. Cool for a few minutes then serve.

Notes

Use butter AND olive oil for the caramelized onions.  The oil has a higher burning point so your onions won't burn and the butter adds additional flavor.
Use a round cookie cutter. They create uniform circles for each tart and make the job easier.  It also helps with uniform baking.  If you don't have a round cookie cutter, you can use the back of an empty can.
Don't skip the egg wash. The egg wash on the puff pastry will give a beautiful glossy and golden brown color once the tarts are baked.  This is a crucial step.
Be sure to thaw out the puff pastry dough in advance. This will make working with it a bit easier.
Cut the puff pastry dough slighter larger than the tomato. You want the tomato to take up most of the surface but leave a bit of the pastry visible.

Nutrition

Calories: 417kcal | Carbohydrates: 28g | Protein: 7g | Fat: 30g | Saturated Fat: 9g | Cholesterol: 37mg | Sodium: 200mg | Potassium: 77mg | Fiber: 1g | Vitamin A: 230IU | Vitamin C: 1.4mg | Calcium: 64mg | Iron: 1.7mg