How do I ensure my husband inherits the house?

I bought the house before we were married, we've been married/living here together for almost 5 years. I have him on the homeowners insurance, but he was not on the deed or mortgage when I bought it. If something happens to me, how do I make sure he gets to inherit the house? What is the smartest way to leave the house with him to reduce taxes or legal paperwork? I live in South Carolina, idk if that makes a difference. Thanks for guidance!

Edit: I did not think to mention, I really don't want the mortgage to refinance when I die so I'd love for him to be able to take it over without hiccup.