For Easter today I made the "Hot Fudge Cake" found on page 214 of Best-Loved Slow Cooker Recipes. The recipe said to pour 3 1/2 cups boiling water over the batter in the Crock Pot, so that is what I did. When I went to invert the cake, however, out came about 2 cups excess water all over the counter. Didn't get my clothes, though!
So, next time 1 1/2 cups boiling water would probably be sufficient.
The cake tasted good; although, I accidentally added at least twice the cocoa powder in the cake (read the recipe wrong). Hmmm, maybe all the extra cocoa caused the cake not to absorb 2 extra cups of water . . . . Just kidding.
Yes, I will make it again (with less water) because I like the ease of the hot Crock-Pot cake!