Infinite creature LTBInfinite creature ETBInfinite creature sacrifice triggersInfinite death triggersInfinite +1/+1 counters on a creature
How it works
Activate Bloodflow Connoisseur by sacrificing the persist creature.
When the persist creature dies, it triggers, returning it from your graveyard to the battlefield without a -1/-1 counter on it due to your commander's ability granted to it by Master Chef.
Resolve the Bloodflow Connoisseur ability, putting a +1/+1 counter on it.