This slow cooker 3-ingredient marmalade corned beef is the kind of set-it-and-forget-it dinner that makes St. Patrick’s Day feel special without turning your kitchen upside down. It leans on the classic Irish-American corned beef brisket, but instead of the usual boil with cabbage, we let it gently braise in the slow cooker and finish it with a glossy, sweet orange marmalade glaze. The sugar in the marmalade caramelizes around the brisket, while a splash of Dijon mustard keeps things from tipping into candy-sweet territory. It’s simple, comforting, and the sticky, citrusy crust on the rosy slices is exactly why my husband asks for it every March.
Serve the sliced marmalade corned beef on a warm platter, spooning any extra glaze from the slow cooker over the top. I like to pair it with buttery mashed potatoes or colcannon, plus a side of simply steamed or roasted cabbage, carrots, or green beans to balance the richness. A sharp mustard on the table is always welcome for those who like an extra kick. Leftovers make excellent sandwiches on rye or soft rolls, especially with a little of the chilled glaze and some crunchy slaw.
Slow Cooker 3-Ingredient Marmalade Corned BeefServings: 6
Ingredients
3 to 3 1/2 pounds corned beef brisket with seasoning packet, rinsed and patted dry
1 cup orange marmalade
2 tablespoons Dijon mustard
Directions
Place the corned beef brisket fat-side up in the slow cooker. Discard the seasoning packet or save it for another use; you won’t need it here because the marmalade glaze provides all the flavor.
In a small bowl, stir together the orange marmalade and Dijon mustard until smooth and evenly combined.
Pour the marmalade-mustard mixture over the corned beef, using a spatula or the back of a spoon to spread it so the top and sides of the brisket are well coated. Some of the mixture will slide down into the bottom of the slow cooker, which is fine.
Cover the slow cooker and cook on LOW for 7 to 9 hours, or until the corned beef is very tender when pierced with a fork and can be sliced without falling apart. (If you’re short on time, you can cook on HIGH for about 4 to 5 hours, but the texture is a bit more even and silky on LOW.)
Once the corned beef is tender, carefully transfer it to a cutting board, letting any excess glaze drip back into the slow cooker. Tent loosely with foil and let it rest for 10 to 15 minutes; this helps the juices redistribute so the slices stay moist.
While the meat rests, skim off any excess fat from the surface of the cooking juices and glaze in the slow cooker. If you’d like a thicker, stickier glaze, pour the liquid into a small saucepan and simmer over medium heat for 5 to 10 minutes, stirring occasionally, until it reduces to a syrupy consistency.
Slice the corned beef against the grain into 1/4-inch slices. Arrange the slices on a warm white platter, keeping the fat cap side slightly exposed for that glossy, glistening look. Spoon the thickened marmalade glaze over the top so it coats the meat and pools lightly around it. Serve hot, with extra glaze on the side.
Variations & Tips
If you prefer a slightly less sweet glaze, substitute half of the orange marmalade with bitter orange marmalade or cut the marmalade to 3/4 cup and add a splash of water to keep the brisket moist. For a gentle heat, use a spicy or whole-grain Dijon mustard instead of classic Dijon; it adds texture and a subtle bite that plays well with the sweetness. You can also swap in another citrus preserve—such as lemon or grapefruit marmalade—for a different twist while keeping the 3-ingredient structure intact. If your corned beef is especially lean, add 1/4 cup water to the bottom of the slow cooker to ensure there’s enough moisture for braising; the rendered juices will still blend with the marmalade into a flavorful glaze. Leftovers reheat beautifully when wrapped in foil and warmed in a low oven, and they’re excellent sliced thin for sandwiches or diced into hash with potatoes the next morning.
