Slice each chicken breast in half.
Use a meat mallet to tenderize if desired (I find this results in a more tender dish)
Melt butter in large cast iron skillet.
Mix the garlic powder and salt with the King Arthur Keto Flour and place in a dredging bowl.
Dredge the chicken breast pieces in the flour mix,
In the skillet cook the chicken until cooked through (internal temp of 170F)
Remove the cooked chicken from the pan and set aside.
Add the chicken broth to the pan and scrape any bits off of the bottom of the pan.
Add spinach, sun dried tomatoes and cream to the pan and whisk.
Bring the sauce mixture to a simmer
Add the chicken back into the pan and cover the chicken with the sauce.
Heat for a few minutes until the chicken is reheated.
Serve hot.