Cooking Steps

1. 

   Step1:Prepare low temperature slow boiling machine. Vacuum pumping machin

2. 

   Step2:Sprinkle salt and pepper on both sides of steak. Put into vacuum bag and vacuum with rosemar

3. 

   Step3:Put it into a low-temperature slow boiling machine and cook it at 57 ℃ for 4 hour

4. 

   Step4:Take the steak out of the bag and stick it all over with crushed rainbow peppe

5. 

   Step5:Stir in olive oil in the pot and fry on both sides for colorin