Air carrier pilot reported loud bang after take-off. Flight returned to departure airport for an uneventful landing.

Narrative

After takeoff we heard a loud bang followed by an ENG2 STALL ECAM caution. Engine 2 rolled back and recoverd itself quickly without any pilot intervention. The ECAM then message self cleared. I accomplished the appropriate parts of the Engine Stall QRH procedure. ATC was advised; priority handling was requested; and communication with the FAs (Flight Attendants) was established to advise them of the situation. The FAs were advised that we would be performing a precautionary landing back in ZZZ and to expect airport safety equipment to inspect us after landing. I made several PAs to the passengers explaining the same information. The Overweight Landing QRH procedure was accomplished. The landing was uneventful with the exception that we did hear another loud bang when selecting maximum reverse thrust. We stopped on the runway centerline and ARFF (Airport Rescue and Firefighting) personnel advised us everything appeared normal and they followed us to the gate. They also advised us a single puff of white smoke appeared from engine 2 after touchdown. We parked at gate XX and accomplished the shutdown checklist. We elected to do a CONF3 landing; which is contrary to what the Overweight Landing checklist calls for. The logic behind this is: 1) The A320 software calculated a required landing distance (CONF3) that was well under the amount of available landing distance is on Runway XX in ZZZ. 2) In the event of a go around; CONF3 would give us better go-around performance with a compromised #2 engine (Threat) especially considering there is an engine failure missed approach procedure specific to Runway XX. Cause: Although contrary to what the overweight landing checklist calls for; executing a CONF3 landing; helped mitigate the risks (reduced climb performance) associated with possible go-around with high terrain in the area.