There is an asian grocery nearby and I've seen foot long lengths of aloe vera plant in the produce section. I have an aloe plant at home. What do you suppose people do with aloe as a ingredient?
As Kruti Jani rightly pointed out, you can make aloe vera juice. Aloe vera gel (made like this) can also be diced finely and mixed into fruit juices to give a texture and slight freshness to a glass of juice. I have also seen it (the aloe vera gel) mixed with lemongrass jelly or mango sago dessert.
This may be a good starting point
- use a peeler to remove the "latex", the tough skin on the leaf to get to the translucent "gel" inside
- cut gel into small pieces, be sure to get rid of all that is not colourless
- boil gel pieces in water for a 1-5 minutes
Please check if your plant is one of the edible species.