I try, on the whole, not to give unsolicited advice (and usually fail miserably, I’m a terrible meddler). But I feel pretty secure in sharing these 3 pieces of advice based on my cookie making experience of today.
1. If it seems like it’s taking longer than usual for the oven to preheat, follow your instincts and check it out.
2. If the cookies smell like they’re burning even though they haven’t been in for long enough to be cooked, take a look, don’t just assume everything is fine.
3. Baking cookies at 475 degrees for 10 minutes has a much different result than baking them at the prescribed 375 degrees.
From me to you.