Brats with Caramelized Onions and Cheddar Cheese

  Yield: 5 servings Ingredients Caramelized Onions 3 medium yellow onions, sliced (2 lbs) 2 Tbsp butter 1 Tbsp olive oil Salt and freshly ground pepper Cheddar Cheese Sauce 1 1/2 Tbsp butter 1 1/2 Tbsp flour 1/8 tsp garlic powder 3/4 cup milk, or more to thin if needed 5 oz. sharp cheddar cheese,…