Surprised when I went to Torchy's for lunch that their Bacon Bourbon Marmalade is 1,077 Calories for an ounce.
https://torchystacos.com/food/tipsy-chick/
Turns out, I checked, and that's only about 1/50th as much energy per ounce as rocket fuel.
https://www.quora.com/What-is-the-caloric-content-of-a-litre-of-rocket-fuel