Step 1

Preheat oven to 450 F

Step 2

Place pork shoulder on a rack in a roasting pan.

Step 3

Mix garlic, salt, pepper, thyme, oregano and olive oil in a small bowl.

Step 4

Rub all over the pork shoulder.

Step 5

Roast, uncovered, at 450 F for 45 minutes.

Step 6

Remove the pork shoulder from the oven; decrease heat to 225 F.

Step 7

Add sliced onions, chicken broth, beer and chili flakes to the bottom of the roasting pan. Baste the pork with the pan liquids.

Step 8

Tent tin foil over the roast and return to the oven. Check every hour or so and baste the roast with liquids from the pan; add more chicken broth if needed.

Step 9

Roast about 7 to 8 hours, basting every hour.

Step 10

The roast is done when the internal temperature is 170-175 F.

Step 11

Let the roast rest for 20-30 minutes. Remove skin and fat before carving.