Is ooey gooey butter cake supposed to be underbaked?
Yes. The edges should be set and lightly golden, but the center should still look a little jiggly. It finishes setting as it cools. If you bake until the center looks fully firm, it will lose the gooey magic.
How do I know it’s done?
Look for edges that are set for about 1 to 2 inches all the way around, a top that looks shiny and crackly, and a center that wobbles when you nudge the pan but does not slosh like liquid. If you cut it while it is warm, it will seem looser than it really is, so let it cool fully first.
Do I have to use a cake mix?
No, but cake mix is the classic shortcut and it works really well here. If you want a from-scratch base, you can use a simple butter cake batter, but the texture will shift a bit lighter and less chewy.
Can I use a different cake mix flavor?
Absolutely. Yellow is the classic, but butter golden, vanilla, or even spice cake are great. Chocolate also works, but the topping will brown differently, so watch the edges.
Why did my top layer crack?
Cracks are normal and honestly kind of charming. They usually happen as the sugary topping sets and cools. A dusting of powdered sugar makes it look intentional, because it is.
Can I make it in a 9x9-inch pan instead?
Yes. A 9x9-inch pan makes a thicker cake. Keep the recipe the same, but plan on a longer bake, usually 45 to 60 minutes. You still want set edges and a center that jiggles a little when you nudge the pan.
Why is it runny in the middle after cooling?
Most of the time it is either underbaked or it was sliced before it cooled. Next time, bake a few minutes longer and use the visual cues. Also, chilling for 1 to 2 hours makes the cleanest slices and helps the center fully set.
Why is mine dry?
Overbaking is the usual culprit. Pull it when the edges are set and the center still jiggles. If you are using a dark or nonstick pan, start checking a few minutes early since it tends to bake faster and brown more aggressively.