I've done a bit of experimentation over the last couple of weeks from knowledge gleened from some of these videos. My 'success rate', however, is questionable.
Instead of smooth and creamy, it came out runny and grainy. Adding more baby powder made it worse...sticky and lumpy. Gesso is used in artwork as a base or primer for paint and other materials that are applied over it. This stuff is not going to do the job.
I've played around a bit with mixed media backgrounds, using torn paper, craft paint, stencils, rubber stamps and ink pads. They make it look so easy on the videos combining multiple materials and techniques for fabulous end results.
I'm almost afraid to tackle the next project I had my eyes on...making a homemade gelli plate which allows you to create beautiful monotypes without a press, using materials anyone has in their studio. They are available commercially but are fairly expensive and not really in my budget right now
I found a recipe/formula on one of the videos I watched to make one using vegetable glycerin, plain gelatin and boiling water. Once again, it sounds simple enough to make but will it really come out as advertised? I guess there is only one way to find out. I will let you know how this one goes another day. Wish me luck!