Marinated Roast Beef - cooking recipe

Ingredients

1 rolled rump beef roast or sirloin tip beef roast (4 lb.)
1 (12 oz.) bottle beer or 1 1/2 c. apple cider
1/2 c. vegetable oil
2 Tbsp. lemon juice
1 medium onion, sliced
1 clove garlic, crushed
3/4 tsp. diced thyme leaves
1/2 tsp. dry mustard
1 bay leaf
1 tsp. salt
1/2 c. water
2 1/2 tsp. flour

Preparation

Pierce meat with fork about 20 times.
In 2 1/2-quart bowl, mix 1 cup beer (reserve remaining beer), oil, lemon juice, onion, garlic, bay leaf, thyme, dry mustard, salt and pepper.
Place meat in a plastic bag and pour the marinade over meat.
Refrigerate, turning occasionally (or at least 6 hours, but no longer than 24 hours).
Remove roast from marinade (reserve marinade)