Guests rave about the breakfast at Hotel Caroline Mathilde, describing it as "super", "fantastic" and "excellent". The breakfast buffet is said to be extensive with a wide variety of delicious options, including homemade muesli, smoked salmon and Prosecco. Many guests appreciate the lactose-free and vegan alternatives available. Although some reviewers find the breakfast to be solid but not exceptional, the majority are impressed with the quality and variety of the offerings. The breakfast room is described as bright and modern and some guests enjoy the option to eat outside in the greenery. Overall, the breakfast is a highlight for many guests and some even suggest that it alone makes it worth staying at the hotel.