Does anyone have a really good expresso filling recipe for a cake you can share? Thank you so very much.

You can add espresso to anything. Do you want scratch, do you mind rfrigeration, do you want a chocolate, vanilla, or other base? Espresso powder doesn't have to involve more liquid. Kaklua makes a great addition too.

What type of cake is it? With a little more information, you will get some great suggestions.