Spare Spoons Kitchen
The midcentury classic, kept just as Betty made it — oats for the binder, a sweet-tangy tomato glaze on top — now with gram weights and a thermometer cue, so it comes out tender every time.
The oats are Betty's binder — they soak up the juices and keep the loaf tender, a thrifty stand-in for breadcrumbs. Old-fashioned rolled oats hold up better here than quick oats.
Ground chuck (about 80/20) has enough fat to stay moist. Leaner beef bakes drier — if that's what you've got, don't overbake, and pull it right at 160°F.
The hour in the fridge is only to firm the loaf for turning out free-form. The sweet-tangy brown-sugar-and-tomato glaze is the classic move; Hunt's is what Betty used, but any plain tomato sauce works.
Leftovers make the best sandwich — cold, the next day, between two slices of soft bread.
Gluten-free: use certified gluten-free rolled oats — most oats are cross-contaminated with wheat in processing. Check that your tomato sauce is gluten-free (most plain ones are), and everything else in the recipe already is.