After many decades and billions of dollars spent, the effects of foreign democracy promotion interventions remain poorly understood, particularly in authoritarian contexts. Do these external interventions contribute to the building blocks of democratization and democratic consolidation under autocracy? Do these potential contributions come at the cost of bolstering autocrats’ credibility? This article presents a randomized study of a democracy promotion program undertaken by a prominent international non-governmental organization (INGO) in rural Cambodia, in which elected parliamentarians from multiple political parties interacted with constituents. The intervention had relatively large effects on individuals’ knowledge about politics and self-reported political engagement but, crucially, did not give citizens increased confidence in Cambodia’s “democracy,” suggesting a role for democracy promotion without whitewashing the authoritarian nature of Cambodian politics. Overall, the results suggest that democracy promotion under authoritarianism can foster a more engaged and informed citizenry without lending undue credibility to an authoritarian system.