Yes you can. Coffee and chocolate flavor pairings are old favorites, and the alcohol in Kahlua will add an extra bite to the coffee flavor . After baking the cake the actual alcohol will largely have evaporated so eating a slice won't get you drunk.
Some chocolate cake recipes call for it. I think it helps make the chocolate flavor stronger.
You can, it will still bake. However, it will probably taste a little funny. Olive oil has a lot of flavor to it, and it tends to go better with garlic and pasta than chocolate and sugar.
You can use white chocolate... I made a white chocolate and carmel cake several time. The recipes are easily found... My favorite is the Food Network!
if you want.....
yes :)
Level 40 for plain cake and 50 for chocolate (just use a chocolate bar on a plain cake)
Someone might use chocolate powder in cooking such as baking a cake. You can also use chocolate powder for making hot chocolate or a chocolate milkshake.
Yes, you can use olive oil in any cake recipe to replace any other fat. You might want to use regular olive oil instead of extra virgin as it has a lot of flavour. A lot of people will tell you not to use EVOO because of that, but if you don't use too much, it tastes great in any recipe.
can I use white wine vinegar in a chocolate cake insted of white vinegar
It depends on what kind of cake you are making. If you are making chocolate, use chocolate. If you are making Vanilla, use vanilla. If you are making strawberry, use pink vanilla etc.
yes
The moist chocolate cake was scrumptious!