Every week my wife and I have this problem. My wife cuts the potatoes and onions, adds the barley, beans and meat. But I spice the cholent! I always claim I'm the one who made it because we pasken taa'm k'ikar. Furthermore, I believe from the sugya Uman Koneh Bsvhach Kli that although a non spiced cholent is edible, nonetheless I aquire the cholent through my improvement.
I also believe I have a proof from tevilas keilim, that if a non jew made the majority of the kli, but a jew gave the last notch, the kli doesnt not need tevilah.
However, She claims she made it because she did all the work.
How can we amicably come to peace and settle this once and for all?
Please base answers only on Torah sources