"The first time I made this recipe it was perfect and delicious. Our guests licked their plates clean.Tonight I made it for the 2nd time. The mascarpone mixture was slightly separated, lumpy and thin. A few thoughts..I'm not sure if the expresso was cooled off enough. The mascarpone was cooler than room temp. Also, the first time, I added the rum/expresso first to the egg mixture to incorporate. Then I added the mascarpone. I agree with the reviewer who stated the importance of room temperature ingredients. I think this is where I went wrong. It's in the refrig. and I'm hoping for 24 hrs. to make a difference. "