Step 1: Cut the beef into pieces of about 1.5 cm. After washing, use kitchen paper to absorb the water on both sides. Normal frozen steak needs water absorption, but it doesn't need water absorption if it is fresh.

Step two, beat back and forth with a meat hammer. Be sure to knock a few times. You can't stop when there is a mark. You must knock at the door. Loose meat hammer is used to loosen the meat fiber, which makes the steak taste softer and smoother, and it is easier to taste when marinating. The method of hammering is to beat both sides of the whole steak evenly with a steak hammer. Don't use too much force, and knock a few times where there are tendons. Step 4: Pour in the red wine and cover the bottom. Beef is generally best marinated overnight, or 32 hours, because in this way, the taste can be really delicious. Add rosemary when frying, it will taste better.