Cooking spray
1 cup whole-wheat breadcrumbs
2 large eggs, lightly beaten
½ tsp. ground pepper
½ tsp. salt
1 tsp. garlic powder
½ cup all-purpose flour
4 boneless, skinless chicken thighs (about 1 pound total), trimmed
2 cloves garlic, crushed
1 tbsp. hot sauce, such as Frank's RedHot
2 cups buttermilk