I have a question about the recipe "Chocolate Thai Green Curry Cake" from raspberryeggplant. I tried making the frosting and it all seemed to be going well. I got the hard peaks (which took between 4-5 minutes). Then I added the butter. I never got the curdled look. It just got thinner and thinner and flat. How long should I mix between each piece of butter and how long should I beat on high speed after all the butter is added to get the finished product?