Bacon Cheddar Tart with Caramelized Onions

Prep: 20 minCook: 35 min1 tart (4 slices)medium
Bacon Cheddar Tart with Caramelized Onions

A rich savory tart featuring sweet caramelized Vidalia onions paired with crispy bacon and sharp cheddar cheese in a custard-like filling. The combination of smoky bacon, tangy cheese, and golden onions creates layers of flavor perfect for brunch, lunch, or light dinner. The prebaked pastry shell ensures a crisp bottom while the creamy egg custard sets to silky perfection.

Ingredients

Yield: 1 tart (4 slices)
  • 1 large Vidalia onion, sliced
    yellow onion1:1vegetarian

    milder flavor

    Full guide →
  • 4 slices bacon, cooked crisp and crumbled
    ham1:1

    less smoky

    Full guide →
  • 1 cup shredded cheddar cheese
    gruyere1:1vegetariandairy-free

    nuttier flavor

    Full guide →
  • ¼ cup parmesan cheese
  • ½ cup evaporated milk
    heavy cream1:1vegetarian

    richer texture

    Full guide →
  • 3 eggs, beaten
  • 1 single crust pie shell, pastry
  • 1 tablespoon butter
  • ½ teaspoon Kosher salt

Instructions

  1. 1

    Line tart pan or pie pan with pie dough

  2. 2

    Pierce with fork and bake in preheated oven for 8-10 minutes

  3. 3

    Remove from oven and set aside

  4. 4

    Arrange sliced onions in single layer in medium skillet over medium low heat with butter

  5. 5

    Sprinkle salt over onions and cook until soft and golden

  6. 6

    Combine eggs, bacon, cheeses and milk in bowl

  7. 7

    Add onions and mix well

  8. 8

    Pour filling into prebaked pie shell

  9. 9

    Reduce oven temperature and bake for 20-25 minutes or until set

Tips

Tip 1

Prebake the shell to prevent a soggy bottom and ensure the pastry stays crisp under the custard filling.

Tip 2

Cook onions slowly over medium-low heat for the best caramelization and sweetest flavor development.

Tip 3

Let the tart cool for 10 minutes before slicing to allow the custard to set properly.

Good to Know

Storage

Refrigerate covered up to 3 days

Make Ahead

Prebake shell day before, assemble morning of serving

Serve With

Serve warm or at room temperature, cut into wedges

Common Mistakes

Watch

Don't skip prebaking shell to avoid soggy bottom

Watch

Cook onions slowly to avoid burning and ensure proper caramelization

Substitutions

Dairy-Free Swaps

cheddar cheese
gruyere1:1vegetariandairy-free

nuttier flavor

Full guide →

General Alternatives

evaporated milk
heavy cream1:1vegetarian

richer texture

Full guide →
Vidalia onion
yellow onion1:1vegetarian

milder flavor

Full guide →
bacon
ham1:1

less smoky

Full guide →
Find more substitutions →

FAQ

Can I make this ahead of time?

Yes, prebake the shell a day ahead and store covered. Assemble and bake the morning you plan to serve for best texture.

What if I don't have a tart pan?

A regular 9-inch pie pan works perfectly. The cooking time and temperature remain the same for either pan type.

How long will leftovers keep?

Store covered in the refrigerator for up to 3 days. Reheat individual slices in a 300F oven for 10 minutes to crisp the bottom.