Brunch: $30 / With Drinks: $45 / Kids: $15. What a treat this one is! Swing by El Mariachi on a Sunday or Sunday morning to get a breakfast entree and bottomless mimosas for just $25 total. 25 Degrees allows its guests to customize their drinks by offering $12 bottles of champagne on weekends. Calle Ocho | Erica Camille. CHICAGO (WLS) -- This year, Chicago Restaurant Week runs Friday, March 25th,. All of the food was exceptional. Brunch has its history as a post-church cooldown, a Mother's Day celebration, and a way for the rich to flout Prohibition laws, as mimosas and bloody marys allowed for the consumption of booze . And after a round or three of mimosas ($18.95), you might just be compelled enough to book that trip. The best bottomless brunch inChicago will keep the refills coming while you sit back and enjoy the food and conversation. P: 630.864.5270,