In a bowl or a jug, whisk the sauce ingredients to combine (coconut milk, peanut butter, soy sauce, sriracha, honey, rice vinegar, and sesame oil. Set aside.
In a skillet over medium high heat, heat the oil and add the chicken pieces. Season with salt and pepper and cook for 5-7 minutes or until cooked through. You don’t want color, you just want the chicken to be cooked through here (internal temp 165°F/74°C).
To the same skillet, add garlic and ginger and cook for 1 minute, then deglaze the pan with chicken stock. Add the peanut sauce mixture, mix and allow to simmer on low medium heat for 2-3 minutes as you cook the noodles.
To cook rice noodles, add them to a bowl and cover with boiling water. Allow them to sit for 2 minutes then strain (or, follow the instructions on the package)
Add cooked noodles to the chicken and the sauce, and toss everything together until the noodles and chicken are coated in the sauce. The noodles absorb liquid quickly, so thin out with hot water if needed. Garnish with toasted peanuts, cilantro, and green onion. Serve with a squeeze of fresh lime juice.