Texas Hot Peanuts

1 pound shelled raw peanuts
1/4 cup peanut oil
1 tablespoon chili powder
3/4 teaspoon paprika
1 teaspoon salt
1/2 teaspoon red pepper
1/2 teaspoon onion powder

Place peanuts in shallow roasting pan. Pour peanut oil over peanuts; stir to coat. Roast at 350 degrees F for 35 minutes, stirring twice. Drain.