It sounds like a lot of ingredients and complex but is not, I done this as I needed some comfort as the whole family is suffering from a colds,so was a treat for them too.
Place the flour in a bowl and the sugar as well as the baking powder, whisk them together. Once well mixed add the veg oil and the egg to the centre and star mixing gently in a folding motion as is starts to get to thick add the lemon zest the vanilla essence and a little milk keep folding and adding more milk, keep adding milk and folding until a soft mousse consistence is achieved (that's why I said about a mug of milk as depending on size it might take more or less milk) once done cover bowl and let it rest for about 10 minutes this will allow the dough to get light and bubbly as the folded air reacts with the baking powder. while waiting de-seed the two plums and slice them very thinly and place them on a wok or frying pan, add the brown sugar the maple syrup some vanilla essence and a little cinnamon, if you want you may also add some good (one soup spoon) cognac or vintage port, or even sherry. Take this to the heat and to the boil once boiling reduce heat to minimum and let it simmer if it thickens too much add a drop or two of water every time is too thick.
Now back to the pancakes, the dough should be fluffy enough now, fold it a few times and heat a non-stick frying pan place a couple of spoons (full) of dough at the centre and with the back of the spoon spread it to a round shape (spread it thick) it will start bubbling and when is nearly cooked through (but not quite) turn it over leave it for another 2-3 minutes and it's done, repeat process until all dough is gone (you should get about 8 pancakes).
On a separate bowl pour the cream and whisk it once nearly thick add a couple of drops of lemon juice and a tea spoon of sugar, whisk it more and when thick add another tea spoon of sugar and just whisk it for 30 secs more.
Now you lay it one pancake cover it in cream and drizzle some plum compote you made, another pancake and repeat the process. and it's all done serve it with a nice cup of coffee and you are in Heaven, at least me and my family were, I just didn't like washing the pots after lol.
Now you can do this with various fruits I would prefer tart ones to compliment the sweetness of the sugar and the maple syrup, but it is really your choice.