Common Questions
Do I need to preheat the cast iron skillet?
You do not have to, but I recommend a quick preheat in the oven while it heats up. A warm skillet helps the edges start baking right away, which is exactly what gives you that crisp rim. If you skip preheating, it still works, just expect slightly less dramatic edge crisping.
How do I know when it is done if the center is supposed to be gooey?
Look for these cues: edges are set and golden brown, the top looks mostly dry on the outer ring, and the center still looks slightly underbaked and jiggles when you gently shake the skillet. If you wait until the center looks fully baked, you will lose the goo.
Can I use an 8-inch skillet?
Yes, but the cookie will be thicker and needs longer. Start checking around 20 minutes and go by doneness cues. If the top browns too fast, tent with foil.
What if I only have a 12-inch skillet?
Perfect. The cookie will be a bit thinner and will bake faster. Start checking at 14 minutes.
Can I make the dough ahead?
Absolutely. Refrigerate the dough (covered) for up to 48 hours. Press into the skillet and bake. Cold dough may need 1 to 3 extra minutes.
Why did my cookie get dry?
The most common reason is overbaking. Pull it when the center is still soft. Also measure flour carefully. Too much flour makes a dense, dry cookie.
Is it safe to leave it in the hot skillet?
Yes, but remember it keeps baking from residual heat for several minutes. If you want it extra gooey, pull it earlier. If you want cleaner slices, let it rest longer.
