Made some ribs last weekend myself and we own a smoker. If you have an oven and grill, you have some options.
You can do them entirely on the grill if you are able to somewhat control the temperature on it. Whether oven or grill: Rub them with your seasonings the night before if possible Put them in uncovered at 275 degrees for about 1-1/2 hours. Wrap them in foil and put them back on for another 1-1/2 hours. Unwrap the foil and baste them with your favorite BBQ sauce. If you want them crispier, raise the temp to about 325 and cook for an hour longer. If you don't want them as crispy, leave the temp alone and cook for an hour. Take them off and let them rest for about 10 minutes. If they seem a bit on the dry side, wrap them back in the foil and let them rest for 20 minutes.
Then slather them with more sauce before you serve them.
My technique changes with a smoker. I cook them at 225 for 6-7 hours total. And if you have a really big slab of ribs, extend the cook time to 2 hours open, 2 hours closed, 1 hour open.
Ribs are yummy!