baked ribs recipe

Ingredients: 2 racks of baby back ribs (about 4 pounds total) 1 tablespoon olive oil 1/4 cup brown sugar 2 teaspoons smoked paprika 2 teaspoons garlic powder 1 teaspoon onion powder 1 teaspoon ground mustard 1 teaspoon salt 1/2 teaspoon black pepper 1/2 teaspoon cayenne pepper (optional, for heat)