Stuffed Hasselback Turkey Breast

Ingredients (14)

• + ½ cup diced onion add to pantry
• + ½ cup diced celery add to pantry
• + 1 tablespoon butter add to pantry
• ✓ 2 cups small dry bread cubes
• + 1 teaspoon poultry seasoning (dried sage, rosemary, and thyme) add to pantry
• + ½ teaspoon kosher salt add to pantry
• + 1 pinch ground pepper, or to taste add to pantry
• + 1 pinch cayenne pepper, or to taste add to pantry
• + 1 cup hot chicken broth add to pantry
• + 1 large egg yolk add to pantry
• + 1 (2 1/2 to 3 pound) turkey breast half (with bones and skin) add to pantry
• ✓ salt and freshly ground black pepper to taste
• + salt and freshly ground black pepper to taste add to pantry
• + 1 tablespoon melted butter for brushing add to pantry