Since you're not using the liquid ingredients it calls for on the cake mix box (which lessens the calories to 181 per 1/12th of the cake), the mix will be thick when combined.
But the cake turns out looking fine.
And tasting pretty good too, even without icing. :)
For the full recipe for HG's Yum Yum Chocolate Cake, with instructions, check out this link at Hungry Girl. Considering we're going into primo baking season, it's good to have some options that aren't loaded to the hilt with calories.