4 pounds beef round steak
1 cup chopped onions
1 12-ounce can beer
1/2 cup brown sugar
1/2 cup ketchup
1/3 cup cider vinegar
1 6-ounce can tomato paste
1 tablespoon chili powder

20 sandwich or hamburger buns

Trim excess fat from round steak and cut into chuncks. Place in a preheated slow cooker on high. Reduce heat to low and stir to brown meat. Add remaining ingredients (except the buns) and cook, covered for 8 to 10 hours. Then remove meat from slow cooker and shred. Replace meat and stir so that the meat is well coated in sauce. Serve on buns. Makes about 20 sandwiches.