Trail Boss Beef Short Rib Tacos with Pickled Red Onions

Ingredients

• 2 lbs beef short ribs (from The Stetson )
• Salt and black pepper, to taste
• 2 tbsp olive oil
• 1 onion, chopped
• 4 cloves garlic, minced
• 1 cup beef broth
• 1/2 cup tomato sauce
• 1 tbsp chili powder
• 1 tsp cumin
• 8 small corn or flour tortillas
• 1 large red onion, thinly sliced
• 1/2 cup apple cider vinegar
• 1/2 cup water
• 1 tbsp sugar
• 1 tsp salt