In a 10-inch cast-iron skillet, cook bacon over medium heat until crisp, about 15 minutes. Remove bacon using a slotted spoon, and let drain on paper towels, reserving drippings in skillet.
Add potatoes, thyme, garlic, bay leaf, salt, and pepper to skillet; bring to a simmer. Reduce heat to medium-low; cover and cook, stirring occasionally, until potatoes are tender, 18 to 20 minutes. Stir in bacon before serving. Garnish with thyme, if desired.
Recipe by Taste of the South at https://tasteofthesouthmagazine.com/bacon-fat-confit-potatoes/