cereal help I'm now trying to start Ryker on cereal. I made it as the container said, 1tbsp cereal…

cereal help

I'm now trying to start Ryker on cereal. I made it as the container said, 1tbsp cereal to 4 tbsp formula. I tried spoon feeding and he hated it. Even though I barely put the spoon in, he gagged and spit it all out. Put it in his bottle and he refused to drink and kept screaming. Is this a trial and error thing or an issue?