Combine all ingredients except corned beef and glaze in crockpot. Add corned beef with fat side up. Cover and cook on Low for 10 to dozen hours or until fork tender or on High for 5 to 6 hours.
Remove meat from broth. Score top of corned beef in diamond shapes. Insert additional cloves to decorate if desired.
About 30 minutes before serving, place corned beef on heatproof platter. Prepare glaze and spoon over corned beef. Bake in 375 degree oven for 20 to 30 minutes, basting occasionally with glaze.
Glaze: Mix ingredients togethers until smooth and blended.