Hi Keylime, and welcome to DC...We have a dessert topics here and many wonderful bakers. If you'd like go to that topic and ask your question and any other you may have and they will rush to help you. So glad you've joined us.
HEAVEN is Cade, Ethan,Carson, and Olivia,Alyssa,Gianna
Welcome, one thing you can do to get rid of
bubbles/air holes is to fill the pan and then
bang it on the counter before you put it in the
oven. I know it sounds crazy but it gets the
air bubbles out. One quick drop/bang should do it.