Right so this caught my eye because something similar happened to a mate of mine over in Rugeley about four years back. His kitchen drawers would be open every morning, not just cracked, properly pulled out. He had a joiner round who checked all the runners and found nowt wrong mechanically. What I find interesting from the case studies I've been reading is that poltergeist activity in kitchens seems to cluster around storage areas specifically, cupboards, drawers, pantry doors. Nobody really has a satisfying explanation for why that would be the case rather than, say, doors to rooms.
Are you the only one in the house who notices it, or has someone else seen it happen in real time? That detail matters quite a lot I think. Witnessed activity versus discovering it after the fact are sort of two different categories when people document these things properly.
Also worth noting what time roughly you're finding them open. Keep a log if you can, even just on your phone. Patterns are everything with this sort of thing.