A light single engine aircraft pilot reported the engine quit when they pulled the mixture control knob instead of carburetor heat.

Narrative

Aircraft just completed annual inspection to my complete satisfaction. Before the post maintenance flight; a thorough preflight inspection and run-up were completed without issue. This is 100% an operator issue. I planned to remain in the pattern. First take-off; crosswind and left downwind were perfectly normal. Abeam 'the numbers' I pulled the mixture intending to pull carburetor heat!! After four months in maintenance; I should have been proactive and enlisted an instructor for added safety. On a close in left base for traffic; and 300 feet the engine quit. I had been cleared to land and after no throttle response I turned direct to the threshold. A very respectable dead-stick landing was; with luck; performed. I steered the aircraft clear of the runway. After cleaning up the aircraft I started and taxied back to the hangar. After a change of tighty whities I immediately contacted my instructor. Although current I have gained new respect for proficiency. Before returning to the airport; I will schedule a full Flight Review with my very experienced instructor. My takeaway from this is look / identify / engage. Looking for the close-in base leg while scanning for traffic is no excuse.