Cook diced potatoes in boiling water until tender, 15 to 20 minutes.
6 to 8 russet or sweet potatoes
Drain the water and let the potatoes cool.
Melt cooking fat in a skillet over medium-high heat.
1 tbsp. cooking fat
Add the sliced onions and cook until lightly caramelized, 10 to 12 minutes, then set aside.
1 red onion
Add the coriander and cumin seeds to the skillet and cook for 1 to 2 minutes.
1 tbsp. coriander seeds, 1 tsp. cumin seeds
In a bowl, combine the onions, grilled seeds, oregano, chili flakes, bacon, parsley, olive oil, and red wine vinegar.
½ tbsp. dried oregano, ½ tsp. chili flakes, 4 bacon slices, 3 tbsp. fresh parsley, ¼ cup olive oil, 2 tbsp. red wine vinegar
Whisk together and season to taste.
Sea salt and freshly ground black pepper
Add the potatoes to the onion-bacon sauce and gently toss.
Eat right away or serve cold.