Cooking is good therapy for the hand because many tasks have to done with both hands.
Here are a few examples of kitchen tasks that force me to use my hemiplegic hand.
I am not the only one who thinks cooking is good therapy for the hemiplegic hand. OTs at Samuel Merritt University developed a treatment program for stroke survivors that includes preparing lunch and cleaning up the kitchen (1). The group that used both hands during cooking activities in OT used their hemiplegic hand more often at home than the group who received constraint-induced therapy. Cognitive research shows that transferring skills to a new setting is more likely to happen when the pratice task closely resembles the target task.
1. Hayner, K., Gibson, G., & Giles, G. (2010). Comparison of constraint-induced movement
therapy and bilateral treatment of equal intensity in people with chronic upper-extremity
dysfunction after cerebrovascular accident. American Journal of Occupational Therapy, 64(4),