Brain Hash
intro
Silky, rich calf brains paired with crispy potatoes and spiced onions, this old-school American diner hash is hearty, savory comfort food with a uniquely luxe texture.
Ingredients
Steps
Blanch the calf brains
Bring 1 liter of water to a rolling boil over high heat, then stir in 2 tablespoons (30ml) white vinegar and 1 teaspoon (3g) of kosher salt. Gently lower the cleaned, membrane-free calf brains into the boiling water, reduce heat to medium-low to maintain a gentle simmer, and cook for 5 minutes. Use a slotted spoon to transfer brains to an ice water bath for 3 minutes to stop cooking, then pat completely dry with paper towels and cut into 2cm (3/4 inch) chunks.
Par-cook potato cubes
Place the cut 1cm (1/2 inch) russet potato cubes in a microwave-safe bowl, add 2 tablespoons (30ml) of tap water, cover with a vented lid, and microwave on high power (1100W) for 4 minutes until potatoes are fork-tender but not mushy. Drain any excess standing water, then spread potatoes in a single layer on a paper-towel lined tray to air-dry for 2 minutes to ensure crispiness during frying.
Fry potatoes until crispy
Melt 2 tablespoons (30g) of unsalted butter in a 30cm (12 inch) cast iron skillet over medium-high heat (175C/350F pan surface temperature). Once the butter stops foaming, add the dried par-cooked potato cubes in a single even layer, season with 1/4 teaspoon (0.75g) of kosher salt, and cook undisturbed for 6 minutes until deep golden and crispy on the bottom. Flip all potato cubes with a spatula and cook for another 4 minutes on the second side, then transfer crispy potatoes to a clean plate and set aside.
Sauté spiced onions
Reduce heat under the same skillet to medium (150C/300F pan surface temperature), add the remaining 1 tablespoon (15g) of unsalted butter, then toss in the finely diced yellow onion. Cook for 4 minutes, stirring occasionally with a spatula, until onions are soft and translucent. Stir in the all-purpose flour, smoked paprika, garlic powder, remaining 1/4 teaspoon (0.75g) kosher salt, and ground black pepper. Cook the spice-flour mixture for 1 full minute, stirring constantly, to toast the spices and cook out the raw flour taste.
Sear the brain chunks
Add the patted-dry, blanched calf brain chunks to the skillet with the spiced onion mixture, stirring very gently to coat every piece in the seasoned flour. Cook over medium heat for 4 minutes, turning the pieces gently every 1 minute, until the brain chunks are lightly browned on the edges and fully heated through, taking care not to mash the soft, delicate brain tissue.
Combine and finish hash
Return the crispy cooked potatoes to the skillet, pour in the 60ml (1/4 cup) low-sodium chicken broth, and fold very gently to combine all ingredients evenly. Reduce heat to low (120C/250F pan surface temperature), cover the skillet with a lid, and cook for 3 minutes to let flavors meld and the broth fully absorb into the hash. Taste and adjust salt if needed, then top with chopped fresh flat-leaf parsley and serve hot.
Tips
2.Pat both blanched brains and par-cooked potatoes completely dry with paper towels before searing; excess surface moisture will prevent crispy potato edges and cause the delicate brain tissue to turn mushy as it cooks.
3.Always stir or fold the hash very gently after adding the brains, as they have a soft, custard-like consistency that will break down into a grainy paste if stirred too roughly.
OMG, I’ve been chasing the brain hash I had at a tiny upstate New York diner when I was 12 for literal DECADES and this recipe absolutely nails it! The potatoes get so perfectly crispy around the edges, the onion and bell pepper ratio is spot on, and that little splash of apple cider vinegar right at the end? Total game changer. My husband teased me nonstop for making “weird old diner food” for our Sunday family dinner but he went back for thirds and asked when I’m making it again. 10/10!
Was a little nervous to try this since I’ve never cooked with brains before—only ever ordered regular corned beef hash at diners! The medium difficulty rating felt totally accurate, the step-by-step directions kept me from messing up the prep, and the final result was SO good. I made a double batch on Sunday for meal prep, and it reheats perfectly for quick weekday breakfasts before I drop the kids at school. I tossed in a little extra cajun seasoning for a tiny kick because my family loves spicy food, but otherwise followed the recipe exactly. Will absolutely be making this again for our next neighborhood potluck!
Wait, has anyone else had issues with the potatoes turning out mushy? I followed the 35 minute cook time listed but mine didn’t get that crispy crust everyone is talking about. Flavor was still great, don’t get me wrong, but I was really going for that crunchy diner texture. Maybe I crowded the pan?
Y’all, I served this for my grandkids’ weekend visit and I was fully prepared for them to turn their noses up at it, but they both gobbled it up and asked for seconds! My oldest grandson said it tastes just like the hash we used to get at the old diner downtown when his dad was little. Total hit, even for the picky eaters. I served it with over-easy eggs on top and a side of buttery toast, just like the diner used to do.