Boob to cows milk at 1 yr advice

Elizabeth A
Anyone have advice for weaning from breastfeeding to cows milk at 1 year? I didn't plan to breastfeed this long but my girl wouldn't take formula around 7 months when I tried to switch. I never pump so she doesn't ever have bottles. Anyone have success with this around 1 year or shortly after? I'm ready to be done breastfeeding but want to make the transition smooth for her. She just turned 11 months.