What happens next?

How to make eggless plum cake
Preheat the oven to 400f/200c.
Prepare the baking sheet (baking tray) with parchment paper (baking paper).
Sift the flour over a large bowl.
Add the butter and rub in with the tips of your fingers quickly to avoid heating it too much.
When the mixture looks like breadcrumbs, stop rubbing in the fat. Pour in the sour cream and almost all of the milk (keep back some of the milk to create the glaze).