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In November 2016, BBC news published a report stating that Toblerone had been redesigned for the UK market. The 400g bar is now a 360g bar with only 11 peaks instead of the usual 15 but both at the same price; this decision was made to compensate for the rising cost of ingredients. The objective of this case study is to introduce students to the difficulty of modeling real life problems using linear programming. Based on a simple real life example, the activities suggested in the teaching notes gradually increase the number of constraints considered. The students can evaluate the impact of those constraints on the results through sensitivity analyses. They also provide all the information necessary for the lecturer to be able to present the case study and its solution in a clear manner. This case was used during one bachelor’s course receiving positive feedback from students.