Stuffed Potato Pancakes - Draniki (VIDEO)

Bahan-bahan (5 porsi)

• 1 1/2 lbs yukon gold potatoes, peeled ((5 to 6 medium potatoes))
• 1 medium onion (peeled)
• 1 large egg
• 3 Tbsp all-purpose flour
• 1 Tbsp sour cream (plus more to serve)
• 1 tsp salt (or to taste)
• 1/8 tsp black pepper (or to taste)
• 3 Tbsp olive oil ((or other cooking oil))
• 1/2 lb ground pork ((or ground chicken or turkey))
• 1/4 tsp salt and pinch of black pepper