What is the unhealthiest milkshake ever made?
                                
                                
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                                    4 min read                                
                            
                                Some historical milkshakes have exceeded a full day's worth of calories in a single cup; in fact, a large Baskin-Robbins Chocolate Oreo Shake from 2009 reportedly contained 2,600 calories. This raises the question for many: what is the unhealthiest milkshake ever made?