Beef rice balls

Ingredients

• 500g minced beef
• 100g scallion - chopped

-For the seasoning A-

• 1 tsp ginger powder
• 1 tsp garlic powder
• 1 tsp fine salt
• 1 egg

• 2 onion - finely chopped
• 5 garlic cloves - finely chopped
• 60g celery - finely chopped
• 10g butter
• 800g steamed rice
• 1/2 tsp fine salt
• 2 tsp black sesame

For the sauce

• 2 tbsp mustard
• 3 tbsp tsuyu
• 1/2 tbsp soy sauce
• 100ml water
• 1 tbsp mayonnaise
• 2 tbsp thai sweet chili sauce
• 1/2 tbsp honey
• 2 tbsp olive oil
• 1 tsp garlic powder
• 2 tbsp heavy cream