Instructions:
Caramelize the Onions: In a skillet over medium heat, melt the butter and add the thinly sliced onions, brown sugar, salt, and pepper. Cook, stirring occasionally, until the onions become soft and start to caramelize (about 15-20 minutes). Add minced garlic in the last couple of minutes and cook until fragrant.
Transfer to Slow Cooker: Transfer the caramelized onions and garlic to the slow cooker.
Brown the Brats: Brown the bratwurst sausages in the same skillet over medium-high heat for about 3 minutes per side to add color and flavor.
Combine Ingredients: Place the browned bratwursts on top of the onions in the slow cooker.
Add Beer and Worcestershire Sauce: Pour the beer and Worcestershire sauce into the slow cooker. If using, sprinkle caraway seeds over the top.
Cook: Cover and cook on low for 6-8 hours until the brats are cooked through and the onions are soft and golden, allowing for maximum flavor absorption.
Serve: Serve the brats and caramelized onions in buns, accompanied by your choice of side dishes.
