How to make Tonkotsu ramen broth from scratch - After Work Living

Ingredients

• 2-3 lbs pork leg bones
• 1-2 lbs pork neck bones
• 1-2 onion peeled
• 5-6 stalks of green onion (chop the greens for garnish, use the whites in the broth)
• 15 cloves of garlic (I buy jars of pre-peeled at the Korean-mart)
• 3 inch knob of ginger
• 3 oz Shitake mushrooms
• Heaps of water (to wash, fill and refill)