Hello!!!!
Does anyone have the recipe for for a great white chocolate cake? or can I just use white chocolate instead of cocoa?
please help me....

Try this one:

http://cakecentral.com/recipes/7495/white-chocolate-sour-cream-cake

Rose Berenbaum has a great one in Rose's Heavenly Cakes.

Yes I like Rose Berenbaum's recipe, I have it in The Cake Bible.
however, I like to reduce the amount of butter & sugar, & increase the amount of white chocolate, to give it more of a white chocolate flavor

This was posted in a "Mud Cake" discussion topic. I believe the original poster was Evoir (recalling from memory). It's now my go to recipe.

White chocolate mud cake

250g butter
250g white chocolate
1 1/2 cups sugar
200mls water
.......Melt all of these together in a saucepan

.......then

1 cup SR flour...sifted
1 3/4 cup plain flour...sifted
2 eggs...
1/2 cup sourcream
AND I ADD I TEASPOON OF VANILLA PASTE - WHICH WASN'T IN THE ORIGINAL RECIPE.,,,,makes a differance

......Mix into chocolate mixture.

Bake at 160C for up to 2 hours - this is for a 10" round cake tin but will all depend on tin used and your oven

I use this for cupcakes and cakes
My oven is fan forced so i knock the temp own during the last 45 mins.