How to Make It
Place bacon in a large ovenproof skillet over medium. Cook bacon until crispy and brown, 6–8 minutes. Transfer to a bowl with a slotted spoon and set aside. Pierce sausage all over with a fork and add to skillet. Cook, covered, flipping halfway through until browned and cooked through, about 10 minutes. Transfer to a cutting board, allow to cool slightly, and slice into ½-inch rounds.
Preheat oven to 375F. Melt butter in a small saucepan over medium-low heat. Cook, swirling pan occasionally, until butter is deep golden and fragrant, 6 to 8 minutes. Transfer to a bowl and allow to cool.