I was able to bake frozen chicken for the longest time in my oven (~6 months). However, recently the fire alarms in my apartment started going off. So I noticed it was a little dirty and cleaned it out with Easy Off, and cooked non-frozen chicken and all seemed to work out fine. Tonight however I tried to cook 4 frozen chicken thighs (1.75lbs) in a glassware container by themselves and put very little PAM spray in the bottom of it and placed a cookie sheet on top... the alarms went off again. What am I doing wrong? On the package for the chicken it says to bake at 350F and I've tacked on 50% of the cooking time since it's frozen. But the alarms went off after only ~30mins. If anyone could point me in the right direction I'd appreciate it! Thanks!
If I understand you correctly, you're putting frozen chicken thighs in a glassware dish that's been sprayed with Pam and then putting that into a 350F oven.
Since the chicken will take quite a while to thaw and begin emitting juices that will cool the dish, that dish is going to rise to 350F fairly quickly. 350F is hot enough to begin smoking with many oils. Not sure about Pam's smoke point, but I would bet that if you looked in the oven when the smoke alarm is going off, you'll see smoke rising from the pan itself, not the chicken or the oven.
Solution: Thaw the chicken before cooking or apply oil to the chicken but not the pan.