Niger is the largest exporter of onions in West Africa. More than 100.000 Nigerian peasants cultivate onions. For them and all the other operators within the chain (intermediaries, tradesmen, shipping agents), the onion is an important source of income. SNV Niger, and Wageningen UR Centre for Development Innovation in the Netherlands, in collaboration with FCMN Niya and Agri-Bilan, initiated an action research titled “Peeling the onion”. The goal of this action-research is to identify possibilities of collective action for all the actors in the value chain of the onion. The research focusses on ‘leverages’ to induce changes which make the onion subsector in one time more competitive, inclusive and sustainable. After this first phase, we shared our results during this participative workshop in Birni Konni in the area of Tahoua. Moreover one stimulated the dialogue between the various actors within the value chain of the onion resulting in the 25 resolutions of Konni! This report is the result of this workshop and dialogues.