I tried an experiment tonight.
I've been occasionally making a smoothie in the evening when I'm low on calories for the day. I'd been thinking I should try adding some alcohol. I mean, it's the evening. Might as well have a nice nightcap with my deliciousness, right? But all we had in the house was scotch and...

I asked for a few opinions about what alcoholic beverages could be added that would add a complementary flavor in addition to the booze and one of the suggestions was Godiva chocolate liqueur. Chocolate? Chocolate!
We bought the liqueur this afternoon. As I looked at the % alcohol... I decided a good deal of the thing could be added. I mean, if I'm going to add alcohol to the smoothie, I want to ADD ALCOHOL. I want a "make me drunk" smoothie, not a, "Well, now I can call it an 'adult smoothie'" smoothie. And so here is what ended up in the blender, all oz by weight (not fl oz):
4 oz chocolate liqueur
4 oz milk
one small banana
4 oz frozen blueberries
4 oz frozen strawberries
4 oz frozen peaches
pinch of salt (to help flavors shine)
This looks like:
I'm not entirely sure the nutrition info I have for the chocolate liqueur is accurate. It claims 100 calories per fl oz, but other sources seem to say between 120 and 125 calories per shot (1.5 fl oz). Using the 100 calories / oz, this smoothie is around 666 calories. Yeah. Hey, even after the smoothie, I'll be under my calories for the day my 389, so...
The finished product:
So how's it taste? Well, I've had about 3/4 of it (it's more than just that one glass), and it's yummy. The flavor of the chocolate liqueur is strong, and I found it a bit unsettling at first. If you don't like the chocolate liqueur to start, you'll hate the smoothie. For the first few sips, I was uncertain. But then I decided... yeah, this is good. I'm enjoying it, and I'll definitely make it again.
I might be better off with a smoothie and a few shots of something else if want a smoothie and am actually trying to be drunk, though. That much smoothie takes a while to drink, and using less of the other ingredients will make the chocolate liqueur downright overpowering.