If I see one more sad potato salad swimming in mayo like a cow lost in the Rio Grande, I will throw my Brezn straight at the cook. Mahlzeit, Freunde – let’s fix this nonsense with a proper Kartoffelsalat, where Texan BBQ grit shakes hands with Bavarian Gemütlichkeit. The Base: Potatoes Without Drama First rule: don’t use those watery mush potatoes, ja? You need firm, waxy ones – Yukon Gold works fine in Texas, while back home I’d grab ‘festkochend’.…