Beef Steam (Bao) Buns - Ontario Beef

Ingredients

• 1 tbsp (15 mL) rice vinegar, divided
• 1 tsp (5 mL) white sugar
• 1 mini cucumber, thinly sliced into rounds
• ¼ cup (60 mL) mayonnaise
• 1 tbsp (15 mL) Gochujang
• 2 tbsp (30 mL) sodium-reduced soy sauce
• 1 clove garlic, minced
• ½ tsp (2.5 mL) fresh ginger, minced
• ½ tsp (2.5 mL) red pepper flakes
• ½ tsp (2.5 mL) brown sugar
• 1 tbsp (15 mL) sesame oil
• 0.5 lb (0.23 kg) Ontario strip loin steak, thinly sliced against the grain
• 8 Chinese steam buns (bao bun)
• 4 medium radishes, thinly sliced
• 4 green onions, sliced