Whenever I buy potatoes, I almost always cook them the same way. I usually pick up red skin potatoes, cut them into yummy little quarters, throw them in my big red bowl, and douse them in some olive oil. I mix in smoked paprika and rosemary, occasionally dill, and lay them all out on a cookie sheet to bake at 375 degrees for twenty minutes. Then I pull them out, and flip them (by hand- usually burning my finger tips) so the other side can roast for 15-20 minutes.
I cut each of the potatoes into half-inch slices and laid them on a baking sheet with parchment (I used waxed paper)
Drizzled the slices with a tablespoon of olive oil, then sprinkled them with a mixture of chili powder, smoked paprika, and cumin
Baked them for 25 minutes at 325
Then I flipped them, and hit the other side with a little olive oil and spices, and baked for another 20 minutes on the top rack of the oven this time.