For the marinade:
In a large bowl, pour all the ingredients together, mix together. Add the chicken and turn it to coat each breast. Cover and refrigerate for 2 hours.
Preheat the oven at 360F.
In the meantime, Put the crushed pecan and the bread crumbs in a shallow plate. Put the eggs in a shallow plate too.
Get the chicken out of the fridge, taken them out of the marinade.
Dip the chicken in the egg and then roll it in the pecan mixture, press to make sure it adhere.
Repeat for the 2 other pieces of chicken.
In a pan (that goes in the oven too), melt the butter at medium heat. Cook 2-3 minutes each sides until it starting to become brown. Then, put your pan in the oven 12-15 minutes.
Serve while warm.