Let's start with the obvious, which you already know: Smitten Kitchen's photos firstly look good because they show off good food. Your photo looks unappealing because it's a pile of chocolate smeared in a bowl. Presentation is such an important part to making food look good -- if you can make it look good to eat in real life, then you at least have the opportunity to take a good photo of it.

Shooting into the bowl creates a technical problem that your photo shows off: the bowl is deep and harder to light evenly. This was a problem for Smitten Kitchen, too: both of the linked recipes have photos of bowls in them, but notice how they're different from your shot: she got closer to the bowls so that they can be more evenly lit and she positioned the camera so that you are less likely to notice the difference. Also notice the content of the bowl: yours is swirled and showing all sorts of highlights; hers is smooth and flowing.

"Get closer" is a great mantra. Somebody famous said "if it's not interesting, you're not close enough." Get closer. Crop out the table top. Put that chocolate up-front, perhaps larger-than-life. As you noted, this is how you found the smooth but noticeable texture of the chocolate.

How are you lighting this? I would start by setting a softbox directly over the bowl to light it, which would give some soft diffused light. It occurs to me that having the white balance ever so slightly warm could make this more enticing; I'd note it for later because I always fiddle with white balance in post.

Also of note: Smitten Kitchen shares some photography tips.