Bacon & Onion Muffins

• 2 1/2 muffin (pan)
• 2 eggs
• 1 bacon drippings until tender
• 5/8 rds full
• 1/2 bacon
• 280 gr unbleached flour
• 240 ml dairy sour cream
• 80 ml milk
• 30 gr onion (chopped)
• 14 gr baking powder