If you want to propose to her on her birthday, have a birthday cake made for her with the words of proposal on it, have it delivered to her while you are with her, and then tell her that is your way of proposing to her.
There are 343 calories in 1 slice of King Cake. Get full nutrition facts and other common serving sizes of King Cake including 1 oz and 100 g. Register | Sign In
Depending on the type of bread: rye, wholemeal or white, one average 32 gram slice packs between 70 to 80 calories. Regular butter is 7 calories per gram so the total can be anywhere between 90-100 calories for a very lightly buttered whole wheat slice and 200 calories for a thickly buttered, white bread toast. Going for wholemeal, grain or rye bread will lower the calories compared to white bread, but not much - they have other health benefits especially on your blood sugar level.