Then lower temperature to 325 and continue to bake for an additional 30 - 40 minutes until toothpick inserted in middle comes out mostly clean. (goldenbarrel.com)
Bake the cake for 30 - 40 minutes or until toothpick inserted in the middle comes out dry and clean. (bake-no-fake.com)
Done when toothpick inserted in middle of cake comes out clean. (artandthekitchen.com)