1Preheat Oven 350 degrees:
In a mix-master combine the sugars, vanilla and the butter and cream. Add the eggs and continue to cream.
In a bowl combine the milk and the yogurt and mix with a fork.
In a large bowl combine the flour, salt and baking powder. Slowly add to the mix-master alternating with the milk mixture.
Add all of the ingredients for the crumb mixture in a food processor and process until crumbs are formed.
Prepare a baking pan with butter.
Place half of the batter in the prepared pan and then a cover with half of the crumb mixture. Cover with the remaining batter and cover the top with the crumb mixture.
Bake 45-50 minutes or until the toothpick test comes out clean.