What's the highest calorie dessert? The world's most extravagant creations
                                
                                
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                                    3 min read                                
                            
                                With a staggering 3,845 calories in a single serving, 'The Roman Empire' sundae from CoCo Gelato in the UK is a prime contender for what's the highest calorie dessert, according to Business Insider. This impressive figure highlights the extreme indulgence some dessert creators pursue, stacking multiple high-fat, high-sugar components into one monstrous dish.