Can You Use Only One Engine to Get to Moho in Kerbal Space Program?

When the budget gets a little tight and we can't just be dropping engines on the KSC like powdered cheese on pasta

My Discord: https://discord.com/invite/rzjq8qP
KSP playlist: https://youtube.com/playlist?list=PL2lqjYK9wCjx5mhmlcFzrukP8cuK56K0e