Cook Soba noodles according to package instructions.
In the meantime, in a large skillet heat sesame oil and add the chicken pieces to it. Cook chicken until no longer pink, then add garlic and ginger to it. Saute the garlic and ginger with the chicken for another 2 minutes and then add the red pepper, and saute an additional 2 minutes.
Add bourbon, soy sauce, rice vinegar, honey, and hot sauce. In a small bowl, whisk the peanut butter with the water together and pour over the chicken. The sauce should thicken, add additional water if you want to make the sauce thinner. Season with salt and pepper if needed.
Add soba noodles to skillet, remove from heat, and toss well to make sure all the noodles are coated with the sauce.
Garnish with chives.