Ah potatoes! How do we love them? Let me count the ways. Perfectly crispy, salty french fries, golden brown herb coated roasted potatoes, creamy smooth mashed potatoes. The not so lowly spud has  been an intense field of inquiry for our friend Kenji Lopez Alt for years now.  For this week’s re-heated episode, he and I take a deep dive into some of the now famous posts he wrote for Serious Eats back in the day. In one, he delves into the mystery of McDonald’s French fries and in another he unlocks the secrets of oven roasted potatoes.