1 tsp Curing salt would be best to keep the pink color of the brisket however, I could not find it so I used 2 tsp celery salt.
Enough water to cover beef. I didn’t need any.
4-5 lbs beef brisket flat (do not trim the fat)
While Baking
Hoseradish Butter
4 TBSP unsalted butter, melted
2 TBSP prepared horseradish
1.5 tsp salt
0.25 tsp ground black pepper
6 medium carrots, cut into 2-in chunks
1.25 lb small gold potatoes, halved
1 small cabbage I used purple, cored and cut into 1/2-inch-thick slices
2 tablespoons chopped Italian parsley, for garnish (optional)
Horeradish cream sauce
1 cup sour cream
2 TBSP prepared horseradish, plus more to taste
1 TBSP Dijon mustard
1 tsp white wine vinegar
1/4 tsp salt
1/4 tsp ground black pepper
1/4 tsp honey
Directions
Brine for 7 days
Blend in a blender onion, apple, pear, garlic, and honey ginger cider
In a large pot with a lid add puree, salt, pickling spice, and Guinness. Heat on medium heat until the salt dissolves.
Turn off heat. Add 3 cups of ice cold water to the brine. Fill up a sink with cold water and place the pot in the sink to speed up the cooling process if desired.
Once the brine is back to room temperature place brisket in the pot. Do not remove any fat. If necessary add more water so the brisket is submerged.
Brine for 7 days in the refrigerator.
Preheat Oven
Preheat oven to 325°F.
Set one oven rack in the middle position and another in the bottom position
Bake Corned Beef
Remove Corned beef from brine and rinse under running cold water. Make sure all salt is rinsed off. There’s no need to dry the Corned beef
Place the corned beef fat side up in large roasting pan and pour 1/8 inch of water around the meat.
Sprinkle brisket with freshly ground pepper.
Cover the pan tightly with heavy-duty aluminum foil and roast on the middle rack for 3 hours.
Bake Vegetables
Meanwhile, in a small bowl, mix together the melted butter, horseradish, salt and pepper.
Place the carrots, potatoes and cabbage side by side on a baking sheet.
Drizzle the horseradish-butter mixture over the veggies and toss with a spatula to coat all of the vegetables evenly, keeping the vegetables separate.
Turn the potatoes so that they are cut side down for crispier potatoes
After the corned beef has roasted for 1 hour and 30 minutes, place the pan of vegetables on the bottom rack of the oven.
Roast the vegetables and continue cooking the corned beef for 1 hour and 30 minutes more, until both the meat and vegetables are tender.
Check on the veggies occasionally to be sure they are browning evenly and turn as needed
Finish
Transfer the corned beef to a cutting board and let sit until cool enough to handle, about 10 minutes.
Cut off the layer of fat on top of the corned beef and discard. Slice the meat perpendicular the grain into 1/4-inch slices.
Arrange the meat on a platter with the roasted vegetables and sprinkle with parsley, if desired. Serve with the horseradish cream sauce.
Horseradish cream sauce
Combine all of the ingredients in a small bowl and stir to combine. Taste and adjust seasoning, adding more horseradish to taste, if desired.