Korean BBQ Beef Recommended Product: BLACK+DECKER WiFi Slow Cooker. Prep Time: 5 min Cook Time: 4 hr Ready In: 4 hr 5 min Serves: 6 Ingredients: 3 Tbsp Brown Sugar 3 Medium fuji Apples, diced 1 1/2 Tbsp Minced Garlic 1 Tbsp Grated Ginger 2 Tbsp Rice Wine Vinegar 5 Tbsp Soy Sauce 3.5 Lbs Top Sirloin, thinly sliced Directions: Place the beef slices in the bottom of the slow cooker. n a blender or food processor, add the remaining ingredients and blend until smooth. Pour over the beef and place the lid on the slow cooker. Cook for 3 hours on high, or until beef is tender. Turn into tacos or burritos for an easy weeknight dinner.