Sweet And Sour Pork/ C/p

• 2 chicken bouln crush (cubes)
• 2 cans pineapple chunks
• 800 gr pork
• 120 ml vinegar
• 90 ml dry milk
• 28 gr brown sugar
• 24 gr shortening
• 24 gr cornstarch
• 22 ml soy sauce
• 22 ml worcestershire sauce