1Heat oil in stockpot over medium heat until hot. Place brisket in stockpot; brown evenly. Remove brisket; season with salt and pepper.
2Reserve 1/2 cup onion. Add remaining onion and garlic to stockpot. Cook and stir 4 to 5 minutes or until onion is tender. Return brisket, fat side up, to stockpot. Add apple cider; bring to a boil. Reduce heat; cover tightly and simmer 2-1/2 to 3 hours or until brisket is fork-tender.
3Meanwhile, heat butter in large nonstick skillet over medium heat until melted. Add apples and reserved onion; cook and stir 5 to 7 minutes or until apples are just tender. Add cranberries and brown sugar; cook 4 to 6 minutes or until cranberries are tender and juices are thickened, stirring occasionally. Stir in walnuts. Keep warm.
4Remove cooked brisket from stockpot; keep warm. Skim fat from cooking liquid. Bring cooking liquid to a boil. Cook, uncovered, 10 to 12 minutes or until reduced by half, stirring occasionally.
5Carve brisket diagonally across the grain into thin slices. Serve with reduced cooking liquid and apple mixture.
source: Family Features