In a cold skillet, add bacon and turn the heat to medium; cook until crispy, about 8 to 10 minutes.
Turn off the heat and transfer the bacon to a plate lined with paper towels; set aside.
Add shallots and garlic; sauté for 30 seconds. Drain the bacon fat and shallot/garlic mixture into a fine sieve sitting over a measuring cup.
Transfer the shallot-garlic mix to a bowl and set aside to cool off a little.
In a medium pot, add water and bring to a boil; add white vinegar.
Meanwhile, add frisée lettuce and bacon pieces to a salad bowl; toss to combine.
Make the vinaigrette; add sherry vinegar and Dijon mustard to the shallot-garlic mixture; whisk until combined.
Slowly emulsify extra virgin olive oil and 1 tbsp. bacon fat by pouring it in a little at a time – if you go too fast, it will separate - season with salt and pepper.
Pour in half of the dressing over the salad mixture and toss to mix. Add more dressing if desired; spoon salad in serving bowls and set aside.
Reduce the water to medium and stir it to create a vortex (prevents the white from spreading out). Crack each egg into individual ramekins and carefully drop the eggs into the water. Poach 2 at a time for 2 to 2 ½ minutes.
Using a slotted spoon, remove the eggs and place them on top of the frisée. Sprinkle on some smoked paprika and chopped chives. Serve immediately with a few crostini.