
This hearty homemade corned beef hash transforms leftovers into a breakfast masterpiece that puts canned versions to shame. The crispy-edged potatoes, savory corned beef, and sweet onions create the perfect base for a runny poached egg to cascade over.
I first made this hash after St. Patrick's Day when we had mountains of leftover corned beef. What started as a simple cleanup meal has become our most requested weekend breakfast tradition, especially when we have overnight guests.
Ingredients
- Russet potato: Creates the perfect starchy base and crisps beautifully (avoid waxy varieties which won't break down properly)
- Corned beef: Delivers that distinctive salty flavor (look for leftovers or quality deli meat for best results)
- Sweet onion: Adds a gentle balance to the saltiness (choose Vidalia or Walla Walla for optimal sweetness)
- Unsalted butter: Provides richness and helps achieve the perfect crispy exterior
- Ketchup: Might seem surprising but adds the perfect touch of acidity and sweetness to balance the dish
- Fresh parsley: Brightens the rich flavors with herbaceous notes and adds beautiful color
Step-by-Step Instructions
- Parboil the Potatoes:
- Simmer diced potatoes in generously salted water for 5-10 minutes until they yield to a fork but still maintain their shape. This critical first step ensures your potatoes will be perfectly tender inside while allowing the exterior to crisp up beautifully in the pan. Drain thoroughly and let them steam dry for a minute.
- Cook the Aromatics:
- Melt butter in a large skillet, preferably cast iron, over medium heat until it foams. Add your finely diced onions with a sprinkle of salt to help them release moisture and cook slowly for 5-7 minutes. Look for translucent onions with golden edges for the perfect flavor foundation.
- Incorporate the Protein:
- Add your shredded corned beef and parboiled potatoes to the softened onions. Fold everything together gently but thoroughly to ensure even distribution. Let the mixture cook undisturbed for 5 minutes to begin developing those coveted crispy edges.
- Build Flavor with Condiments:
- Stir in the ketchup, which might seem unconventional but adds the perfect touch of sweetness and acidity. Season with remaining salt and freshly ground pepper. The ketchup caramelizes slightly as it cooks, creating another dimension of flavor that makes this hash special.
- Create the Perfect Crust:
- Use a thin metal spatula to carefully flip portions of the hash. Don't worry if it breaks apart a bit – that creates more surface area for crisping. Let the hash cook for another 5 minutes undisturbed until you achieve beautifully browned edges with tender centers.
- Finish and Garnish:
- Sprinkle fresh parsley over the crispy hash for a pop of color and fresh flavor. The bright herbaceous notes cut through the richness perfectly. Serve immediately while hot for the best texture experience.

You Must Know
My grandmother taught me to always add a touch of something sweet to balance the saltiness of corned beef. While she used grated apple, I found ketchup creates that perfect balance while adding a nostalgic American diner quality to the dish.
Leftover Magic
Properly stored corned beef hash keeps beautifully in the refrigerator for up to 3 days. To reheat, simply add a touch of butter to a hot skillet and cook the hash until warmed through and crispy again. The flavors actually develop and improve over time, making this an ideal make-ahead breakfast option for busy mornings or holiday gatherings.
Egg Excellence
While poached eggs create a spectacular presentation with their flowing yolks, any egg style works wonderfully with this hash. For a simpler approach, create small wells in the hash during the final cooking stage and crack eggs directly into them. Cover the pan for 3-4 minutes for perfectly set whites and runny yolks without the fuss of poaching.

Historical Roots
Corned beef hash emerged during World War II as a creative way to stretch rationings when meat was scarce. What began as necessity has evolved into a beloved comfort food across America. The dish demonstrates how ingenuity during challenging times can create lasting culinary traditions that bring families together generations later.
Frequently Asked Questions
- → How do I get crispy corned beef hash?
To get crispy hash, ensure the skillet is hot, avoid overcrowding, and let the hash cook undisturbed for a few minutes before flipping.
- → Can I use canned corned beef for this dish?
Yes, canned corned beef works well. Simply dice or shred it before cooking to incorporate evenly with the potatoes.
- → How can I make the hash less salty?
Minimize added salt and rinse the corned beef if it's pre-packaged, as it can sometimes be overly salty.
- → What’s a good substitute for ketchup in this dish?
You can use tomato paste mixed with a teaspoon of vinegar and a pinch of sugar for a similar flavor profile.
- → Can I make this dish ahead of time?
Yes, you can parboil the potatoes and prepare the corned beef in advance. Store them in the fridge and cook the hash fresh when ready to serve.