Heat oven to 350°F. Place Corned Beef Brisket in roasting pan; place coarsely chopped onion and garlic around brisket. Sprinkle contents of seasoning packet over brisket. Add 1-1/2 cups cider; cover tightly with aluminum foil. Braise in 350°F oven 2-1/2 to 3-1/2 hours or until brisket is fork-tender.
Meanwhile, prepare Apple-Onion Sauté. Melt 2 tablespoons butter in large nonstick skillet over medium heat. Add onion wedges; cook 13 to 15 minutes or until onions are lightly brown, stirring occasionally. Add apples, remaining 1 tablespoon butter, cider, brown sugar and thyme; cook and stir 6 to 8 minutes or until apples are crisp-tender.
Carve brisket diagonally across the grain into thin slices. Serve with Apple-Onion Sauté.
Nutrition information per serving: 375 Calories; 198 kcal Calories from fat; 22 g Total Fat; 9 g Saturated Fat; 9 g Monounsaturated Fat; 98 mg Cholesterol; 977 mg Sodium; 28 g Total Carbohydrate; 2.6 g Dietary Fiber; 16 g Protein; 1.9 mg Iron; 2.7 mg Niacin; 0.3 mg Vitamin B6; 1.4 mcg Vitamin B12; 4 mg Zinc; 28.3 mcg Selenium;