Buckwheat and Beef Pilaf (Plov)

Bahan-bahan (8 porsi)

• 1/3 cup olive oil
• 8 Tbsp unsalted butter (divided)
• 1 large onion (diced)
• 1 to 1 1/4 lbs beef (chuck, sirloin or good quality stew meat, trimmed of fat and cut into 1/2" to 3/4" thick pieces)
• 3 large carrots (julienned)
• 2.5 cups buckwheat groats (aka grechka)
• 4 1/4 cups cold filtered water + 1 cup hot water
• 2 tsp salt and 1/4 tsp black pepper (or to taste (I use sea salt))
• 1 tsp cumin spice to taste
• 1 full head of unpeeled garlic