A classic at my house:
1 slab of baby back ribs
½ cup of a good spice rub
1 bottle bbq sauce (I love KC Masterpiece original)
In a large pot boil the ribs for 20 minutes. Heat a bbq grill to medium heat. After boiling ribs, take them out of the pot and rub the dry rub mixture all over the ribs. Add salt and pepper. Then grill for 15 minutes and flip. Grill for another 15 minutes, and then brush on bbq sauce and grill for another 15 minutes. Enjoy.