Step 1

Heat oven 300.

Step 2

Line large cookie sheet with heavy duty foil.

Step 3

Scatter onions on foil to make a "bed" for the ribs.

Step 4

Place ribs on onions and season with salt, pepper or rub.

Step 5

Pour beer on top.

Step 6

Cover tightly with foil.

Step 7

Place in oven for 5 hours.

Step 8

Let rest or place on grill for 10 minutes to give the ribs a crust.

Step 9

If making ahead, let ribs rest-- refrigerate until ready to grill and eat.