01 -
Generously season the roast with salt and pepper. Brown it on all sides in a hot pan with the butter and oil.
02 -
Cook onions in the same pan for a few minutes till they're a little soft.
03 -
In layers, set half the onions, garlic, spices, the roast, and then the remaining onion. Let it go on low for 6-8 hours.
04 -
Mix everything in a Dutch pot. Bake in the oven at 275°F for 2 ½ to 3 hours till it's fork-tender.
05 -
Take out the roast. Whisk the cornstarch and liquid together, cooking until it gets as thick as you'd like.