Looking to create a restaurant-worthy brunch at home? Egg and potato mash-up combines creamy, buttery mashed potatoes topped with perfectly cooked eggs where the runny yolk creates a natural sauce. You'll need russet potatoes, butter, cream, garlic, eggs, and a sous vide setup (ideally 65°C for 30 minutes) or poached eggs as an alternative. The contrast between silky potatoes and gooey yolk makes this dish absolutely irresistible. Discover how customizing the texture and seasonings transforms this comfort food classic.
What Is Egg and Potato Mash-Up?
Comfort food at its finest, the Egg and Potato Mash-Up is fundamentally a heavenly marriage between creamy mashed potatoes and perfectly cooked eggs. This dish—inspired by the famous Eggslut restaurant—combines velvety mashed potatoes with eggs that have been sous vide cooked to achieve that magical consistency of firm whites and gooey, runny yolks.
You'll find it's remarkably versatile too. While sous vide gives you precise temperature control, you can certainly use poached eggs if that's what you have on hand. I think what makes this combination so universally appealing is how the rich egg yolk creates a natural sauce that elevates simple mashed potatoes into something truly special.
Essential Equipment and Ingredients
To make this egg and potato combination work its magic, you'll need a few specific tools and ingredients on hand. The star of the show is definitely a reliable sous vide machine—I recommend either the Anova Precision Cooker or Breville Joule for consistent temperature control.
The perfect potato-egg harmony requires a precision sous vide machine—trust me, it's worth the investment for temperature perfection.
You'll also want 4 oz. Ball mason jars (don't overtighten them!), a 12-quart container (Rubbermaid works well), and tongs for safely handling hot jars.
For ingredients, gather russet potatoes, butter, cream, garlic, eggs, salt and pepper. Additionally, using a sous vide cooker enables precise temperature control for consistent cooking results.
Perhaps adjust the 11 ounces of liquid per potato ratio if you prefer a thicker consistency.
Perfect Sous Vide Temperature and Timing
The magic number for achieving that perfectly runny egg yolk with firm whites is 65°C/149°F for 30 minutes. I think this is where most people get tripped up - sometimes your eggs might need a bit longer depending on their size and starting temperature. For those who want to prepare ahead, try lowering to 134.5°F when holding eggs to prevent overcooking. Just remember, water temperature consistency is essential! Even if your sous vide lacks proper water circulation, you'll still get good results. Don't forget to use tongs when retrieving your jars - they're surprisingly hot after submersion.
Step-by-Step Cooking Instructions
Now that you understand the temperature settings, let's walk through preparing this egg and potato mash-up step by step.
I think this is one of those dishes where the technique matters just as much as the ingredients.
- Begin by setting your sous vide bath to 65°C/149°F and allowing it to fully heat up.
- Meanwhile, prepare your mashed potatoes with garlic, butter, and cream to your preferred consistency.
- Crack a whole egg into each 4 oz. Ball mason jar, then top with your potato mixture.
- Seal jars finger-tight (not too tight!) and submerge in your water bath for 30 minutes. Additionally, consider using vacuum sealing to enhance the flavors and ensure even marination in your dish.
Customizing Your Mash-Up: Texture and Flavor Options
While the basic recipe creates a delicious dish, you'll probably want to play around with different textures and flavors to make it your own.
The original 11 ounces of liquid per potato creates that authentic Eggslut consistency, but you might prefer something firmer. Simply reduce the butter and cream until you reach your desired thickness.
The luxurious mash demands 11 ounces of liquid per potato, but adjust downward for a sturdier base.
For flavors, consider adding fresh herbs like chives or thyme. I think roasted garlic instead of regular adds wonderful depth.
Perhaps try incorporating some grated Parmesan or smoked paprika for an unexpected twist. You could even layer in caramelized onions between the potato and egg for extra richness. Additionally, be aware that certain ingredients, like garlic, can pose food safety concerns when vacuum sealed, so consider your preservation techniques carefully.
Storage and Reheating Tips for Meal Prep
Because these egg and potato jars are so convenient to make ahead, you'll definitely want to know how to store them properly for those busy weekday mornings.
I find refrigeration works perfectly for up to 4-5 days, which is great for a week's worth of breakfasts. Properly sealing these leftovers can further extend shelf life, ensuring they maintain their freshness throughout the week.
For reheating, you've got several good options:
- Sous vide bath - Reheat at 90°F for gentlest warming that maintains texture
- Microwave - 30-45 seconds for quick results (remove metal lid first!)
- Warm water bath - Place sealed jars in hot water for about 10 minutes
- Stovetop - Empty contents into a small pot and warm on low heat
Frequently Asked Questions
Can I Use Duck Eggs Instead of Chicken Eggs?
Yes, you can use duck eggs in this recipe. They're larger with richer yolks, so you'll get a creamier result. Adjust your cooking time slightly to account for their size difference.
How Do Egg and Potato Mash-Ups Pair With Different Breakfast Meats?
While 70% of Americans enjoy bacon with breakfast, egg and potato mash-ups pair wonderfully with various meats. You'll find bacon adds smokiness, ham provides sweetness, and sausage offers savory depth to your dish.
Is This Dish Suitable for People With Lactose Intolerance?
If you're lactose intolerant, this dish isn't suitable as-is since it contains butter and cream. You'll need to substitute these with lactose-free alternatives to enjoy it without discomfort.
Can I Add Cheeses Other Than Parmesan to the Recipe?
Picture your mash swirling with melted strands of Gruyère or sharp cheddar. You can absolutely add other cheeses! They'll complement the creamy potatoes and runny eggs beautifully, enhancing the dish's richness.
How Does Altitude Affect the Sous Vide Cooking Time?
Altitude doesn't considerably affect sous vide cooking times since water temperature remains constant once set. You'll only need to adjust if you're at extreme elevations where water boils below your target temperature.
