Potato and Onion Tart

Happy New Year!!  I hope that 2014 brings you peace, happiness, love, and the best of health..


Looking back on 2013, I’m thankful to have my son here today. He gave us quite the scare last April, but with the wonderful doctors at Children’s hospital in Buffalo, he’s here and will be for many many years to come.

I’m also thankful for my friends who supported this crazy notion of starting a blog. For helping me come up with the name, and proofreading and proofreading, and tasting and tasting!!  And for all the tasting that is still to come!! I’m thankful for those of you who commented on my very first post,  and for the quick friendships that have grown…I’m thankful for those of you who follow my blog… and I look forward to sharing 2014 with each and every one of you. I’ve enjoyed every last minute of this blog for the last few months, and I can’t wait to see what the New Year brings!!


I felt that it was fitting to start butter, basil and breadcrumbs’ 2014 the way that it began in September 2013… with a savory tart.  This one isn’t as complex as my Rustic Tomato Tartlet, but it certainly has the flavor of a complex tart. Of course, it definitely has to involve bacon and some sort of caramelized sweet onions…and what would it be without some sort of cheesy goodness?

I had a lot of potatoes to use up this morning.  I wasn’t really hungry for potato soup, or scalloped potatoes, or potato salad.  I was limited on ingredients because I didn’t have the desire to run to the store, which would have meant changing into decent clothes and taking my hair out of the ponytail. Lazy. And in the same fashion as I usually prepare a meal, I started rummaging through the fridge to see what I had on hand. Pepper Jack cheese. Eggs for custard. Onions. How about roasted balsamic onions? And bacon.  A potato tart it would be. Perfect.


I have to say that I love this tart. I just love it when you can throw some simple ingredients together to come up with a recipe worth saving. It’s simple. It’s rustic. It’s perfect as a side dish for breakfast, lunch or dinner.  It’s perfect to be the main course for breakfast, lunch, or dinner.

Potato and Onion Tart

I used a 9×9 square tart pan with a removable bottom.

The whole time I was preparing this tart, I kept wishing that I had sharp cheddar in the fridge, because I really believed it would really make this tart what my taste buds thought it should be.  But…after taking that first taste of this tart, those taste buds of mine were absolutely certain that the pepper jack was the honest to goodness cheese for this tart.

Since I made this for breakfast, I thought that a couple of fried eggs would top it off nicely.  I was right!


You’ll notice that the picture shows five potatoes in a pan of water.  That’s what I started out with, but to be honest, I only used three of the potatoes.  The other two are now a small potato salad in the fridge.

Tart Filling:
3 medium potatoes, all the same diameter
3 medium onions, all the same diameter
8 oz pepper jack cheese, cut into cubes
½ pound bacon
2 tbsp spicy brown mustard
Custard (recipe below)
1 tsp dried rosemary

Boil three medium size (same size) potatoes until they’re tender, but not completely softened. When they’re cooled, slice into ½” slices.  Set aside.


Slice three medium onions that are about the same diameter into ½” thick slices.  Place each slice on a greased baking sheet. Drizzle with a little olive oil, and a generous amount of balsamic vinegar.  Season with salt and fresh ground pepper. Roast at 400 degrees for about ½ hour, until the onions are soft and browned.  Remove from oven, set aside.


While the onions are roasting, fry ½ pound of bacon until crispy.  Roughly chop.  Set aside.

6 egg yolks
¾ cup heavy cream
½ tsp salt
¼ tsp pepper
pinch of cayenne (or more to suit your desired heat)

In a small bowl, whisk the egg yolks, heavy cream, salt, pepper, and cayenne until well blended.  Store in refrigerator until ready to use.


For the tart, I used Aunt Linda’s pie crust:
2 cups flour
1 cup shortening
½ tsp salt
½ cup milk
1 tbsp vinegar

In a small bowl, mix the milk and vinegar together.  Set aside. In a large mixing bowl, blend the flour, shortening, and salt together until mixture is in pea size crumbles. Pour the milk and vinegar mixture into the flour mixture and stir.   The dough will be sticky.





Use plenty of flour, and roll the dough into a ball. Cut the dough ball in half, and if you’re using a square tart pan, shape the dough into a square.  (You can refrigerate the other half of the dough for a later use) Using plenty of flour on your rolling board, roll the square to 1/8 inch thick.  Press the square of dough into the tartlet pan, and fold the overlapping dough back down the inside of the pan to make the sides of the tart sturdy.  I always weigh my pie crust down with dried beans and a piece of aluminum foil. To make it easier to handle the tart pan, place it on a baking sheet, and bake for 25 minutes at 350 degrees.  Remove the pie weight and let the crust cool in the pan. Set aside. Do not remove the crust from the pan at this point!! 

To assemble the tart:

When the tart crust is cooled, spread 2 tablespoons of spicy brown mustard on the bottom of the crust.  Spread the chopped bacon over the bottom of the crust. Spread the pepper jack cubes over the bacon.



Layer the top of the tart starting with the potatoes, and alternating with the onions, until the tart is filled.


Pour the custard over the potato and onion layers, making sure that the custard fills all of the nooks and crannies between the potatoes and onions.


Season with salt, pepper, and rosemary. Bake at 350 degrees for about 40 minutes, or until the custard is set.

Serve immediately as a side dish, or your main course.  Enjoy!!



19 thoughts on “Potato and Onion Tart

    • Lol…you are not mistaken. I’m glad you caught that!! I went back to my other posts that include this recipe, and sure enough, I had made the same mistake on my pineapple hand pie post too. Do you know how many times I actually read these posts before I hit the publish button? I read it over and over again!! And still miss my mistakes!! 🙂 Thank you so much.. ❤ I've corrected it!

  1. Prudy this tart looks gorgeous. What a pefect way to start off 2014! I’ve never tired potatos in a tart, but you’ve defo inspired me to give it a go 🙂 Happy New Year!!!!

  2. Oh my, what a beautiful and delicious tart. I love savory tarts, this has it all, breakfast, lunch or dinner this is wonderful. I also have a lot of potatoes to use I hope to make this very very soon.

  3. Happy New Year!!! So excited to have found your blog this year 🙂 I would never think to stuff potatoes into a tart, but what a great idea for breakfast. I think this year I’ll start making more breakfasts…usually it’s just something quick.

    • Thanks so much for stopping by, Stacey! You know…sometimes I just don’t feel like making a crust, because maybe on that day a part of me thinks it’s going to be this huge undertaking… and then when I finally decide to go ahead and make the crust..I realize that it wasn’t that bad, and I wonder what was keeping me from it! Go ahead…make that crust!!
      This one really is perfect for breakfast, and like I mentioned in one of the replies, I really did spend the day cutting slivers from it. I ate way more than I should have that day!! 🙂

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s