Pour the topping into a bowl, and place all the wet ingredients in the jar or bowl, and pulse to break up the apple and then puree until smooth and well combined.
Add the dry ingredients and cranberries, and pulse until roughly chopped and mostly combined. You can use a spatula to mix any last bits of flour in.
Scrape the batter into the prepared pan, then sprinkle the topping over.
Bake in the preheated oven for about 35 minutes, or until a a knife inserted in the middle comes out clean,