The sweetest opening this weekend is sure to be Sugar Factory American Brasserie, a sprawling 14,000 square-foot home for sweets, cocktails, and lots of Instagramming inside the Westfield Century City mall complex. The full-service brasserie opened for first service last night, and features some 400 seats across an indoor-outdoor space, complete with a large patio and art installations. This is big, colorful dining at its most LA opulent.