Dogs and 1 year old

Terra
Hi everyone. I have a 1 year old daughter and 2 rottweilers. My dogs are 5 and 6 years old and before my daughter had no experience with children. My question is if anyone has any tips on trying to get the dogs more comfortable with her? Shes been walking since 10m and they are fine with her until she touches them. She feeds them snacks and pets them with our supervision just fine but the second we let them interact alone the dogs are all growls and snarles. I'm at a loss. Should i just keep on track with the treats and supervised petting or am i doomed to have to keep them separated until she's old enough to know they suck? Lol Any advice would be helpful. TIA