Chef Galati's Spezzatino Di Vitello

• 1 garlic clove (minced)
• 1/4 bacon (sliced)
• 525 gr veal shoulder (boneless)
• 475 ml burgundy wine divided (red)
• 475 ml veal stock
• 230 gr onions tiny
• 80 gr mushrooms
• 28 gr butter
• 24 gr flour
• 16 gr shallots