We quite enjoy Top Chef. It’s wholesome, fun reality television. We like the competition. The food intrigues us. Tom Colicchio is just the right amount of curmudgeon. And, boy, do the chefs employ some zany techniques. Recently, while catching up on a past season, we witnessed one chef prepare the most deliciously perfect steak. It had a strong but shallow sear and was evenly pink from edge to glorious edge. It was medium rare bliss. And, it captivated us. For years, we’ve chased this—beef’s Holy Grail. We’ve read and read. We’ve practiced and practiced. We cooked plenty of fine steak. Never did we ever make a perfect one. The Top Chef contestant called his dish “steak sous vide.” We assumed that was French for steak “cooked way better than any bum like you ever could.” But, no. We researched it....