Edit: Letting them play with utensils gives me about 2-3 minutes.
As I cook I make her try the food as it goes, and I narrate what I do, try to make it interesting, sing etc.
And I make sure to, as much as possible, do everything that requires two hands as fast as possible (cutting vegetable and meats) so that if she ends up getting frustrated and wants to go in my arms, I can hold her with my left hand whilst I cook with my right hand.
We do that a couple time a week at least and 90% of the times it goes well. There has been the occasional time where she was in a bad mood and crying and I had to use both hands for cooking, with no other choice that to let her cry for a while, but mostly it's alright.
Or avoid cooking in real time. Prepare food at other times. Have healthy snacks available.
Or use things like steamers and slow cookers or oven, all of which need less continuous attention than frying or boiling stuff.
Not making any judgement but I truly think that parenting is a two-person job.
You cant really force it to happen in any case. Sometimes you cook while fighting the kid and that is that.
You don't have kids right?
Parenting is definitely 2+ person job. At the very least, it's a full-time job for one person.