Soft-Boiled Eggs with Bacon-Infused Sweet Potatoes and Parsley Coulis

Ingredients

• 1 ¹⁄₂ cups coarse sea salt
• 4 sweet potatoes (about 2 lbs.)
• 2 tbsp. chicken stock
• 1 tbsp. extra-virgin olive oil
• 2 tsp. white wine vinegar
• ¹⁄₂ tsp. sugar
• 1 large yellow onion, thinly sliced
• Salt and freshly ground white pepper, to taste
• 1 cup heavy cream
• 8 slices smoked bacon, 2 halved crosswise
• 4 eggs
• 3 tbsp. butter, cut into small pieces
• Leaves from 2 bunches flat-leaf parsley, plus 4 deep-fried leaves