How long does it take to cook a roster bird?

The term "roster bird" is not a commonly used term in cooking or culinary circles. It's possible that you may be referring to a rotisserie chicken, which is a whole chicken cooked on a rotating spit.

The cooking time for a rotisserie chicken can vary depending on the size of the bird and the cooking method used. Here's a general guideline for roasting a whole chicken on a rotisserie:

Conventional Oven:

1. Preheat your oven to 400°F (200°C).

2. Rinse the chicken inside and out and pat it dry.

3. Season the chicken with salt, pepper, and any other desired herbs and spices.

4. Place the seasoned chicken on the rotisserie spit and secure it properly.

5. Roast the chicken in the preheated oven for approximately 15 minutes per pound (0.45 kilograms) of chicken weight.

6. Baste the chicken with cooking oil, melted butter, or a seasoned marinade every 20-30 minutes during cooking.

7. Continue roasting until the chicken's internal temperature reaches 165°F (74°C) when checked with a meat thermometer inserted into the thickest part of the breast.

Note: The cooking time can vary depending on your oven's accuracy, the size and shape of the chicken, and the desired level of doneness. Always use a meat thermometer to ensure that the chicken has reached a safe internal temperature before consuming it.