In a blender combine the basil, olive oil, cashews, garlic, parmesan, lemon juice, salt, and pepper until smooth. This can be left overnight if you want a more mild garlic flavour.
In a pan of boiling water, cook your desired pasta. Ensure pasta is al dente as it will continue to cook with the sauce.
While the pasta is cooking, cut the rashers into small pieces and fry until crispy.
Slice the smoked chicken breast into pieces, set aside.
Drain the pasta. Add the pesto mixture, chicken rashers, and smoked breast to pasta. Stir over low heat until the sauce is warmed.