Espresso and Lime

0 Preheat your oven to 325 degrees
1 Place a large braiser or dutch oven over medium heat and add a few tablespoons of olive oil
2 While the braiser is warming up, slice your beef into large chunks and dry all sides with paper towels
3 Season the beef generously with salt and black pepper on all sides
4 Brown the beef on all sides in batches transferring them onto a plate when finished
5 Once all of the beef has been browned, add 2 tablespoons of butter and the thinly sliced yellow onions into the braiser 
6 Cook stirring occasional for about 10 minutes or until the onions are beginning to caramelize a bit
7 Stir in 6 finely minced garlic cloves into the caramelized onions and season the onions with salt and black pepper
8 Add the beer and use a wooden spoon to stiff spatula to work the browned bits up from the bottom of the braiser
9 Bring the beer up to a simmer and stir in 2 tablespoons of brown sugar and 2 tablespoons of balsamic vinegar 
10 Transfer the browned beef back into the braiser
11 Add the fresh herbs
12 Spread dijon mustard over 4 slices of crusty bread and place the bread over the beef mustard side down
13 Cover the braiser and bake in a 325 degree oven for 2 - 2 1/2 hours or until the beef is very tender
14 About 20 minutes before you remove the beef from the oven, gently stir the bread down into the braising liquid
15 Serve with fries, buttered noodles, mashed potatoes to roasted vegetables