Basic Polenta (Slow Cooker)

I am currently cooking this mixture in my slow cooker. It has been cooking on High for over 2 hours. Stirring as per directions did nothing but produce a thin yellow soup. I have cooked slow cooker polenta before, and used a different recipe which required 6 to 8 hours to cook, on Low, 3-4 Hours on High. I had my doubts about the "Basic Polenta" recipe when I read that it took only 2 1/2 - 3 hours to cook. I'm not a happy camper. It is 8 p.m. No polenta. P.S. - I found the other recipe. It calls for BOILING liquid, 6 Cups to 2 Cups of cornmeal, slow cook on Low for 6 -8 Hours, on High for 3-4 Hours. I added another 1/2 C. of cornmeal to the already cooking, now boiling hot, polenta mixture in my slow cooker and stirred it in well. The mixture had already been cooking on High for 4 Hours and was still relatively soupy. Hopefully, adding additional cornmeal will correct the recipe enough to produce a decent polenta in another hour or two. "Basic Polenta" recipe needs to be corrected.