Beer-Braised Short Ribs (Carbonnade Flamande)

YouTube Link: Beer-Braised Short Ribs (Carbonnade Flamande)
More Videos: Helen's Kitchen Channel

Serves 4

3-4 Lb bone-in short ribs
Salt and freshly ground black pepper
1 Tbsp oil for high heat (grapeseed, canola, safflower)
2 Lb yellow onions (about 5 medium), sliced 1/4 inch thick
2 bay leaves
2 cups beef or brown chicken stock
2 cups Belgian-style ale
2-3 Tbsp Dijon mustard

Cuisinart pan I use for braising