Grilled Cheese Sandwiches with Chanterelles and Caramelized Onions

Heat 2 Tb. butter and olive oil over medium heat in a heavy bottom saucepan. Peel onions, cut in half, and cut again into 1/2-inch thick slices. Add onions to melted butter and oil along with thyme. Stir frequently for 20 minutes until onions soften significantly.

Meanwhile, rub mushrooms with a damp cloth and cut large mushrooms in half lengthwise. After 20 minutes add mushrooms to onions with a bit of salt and pepper. Continue cooking, stirring frequently for another 25 to 30 minutes. Onions should be caramelized at this point and mushrooms soft.

Slice bread if not already done. Grate cheese. Spread about 2 Tb. of grated cheese on each of half the bread slices. Divide mushroom and onion mixture evenly among the cheese covered bread. Top each open sandwich with one tablespoon of remaining grated cheese. Cover with remaining bread slices to form sandwiches. Spread softened remained butter over both sides of each sandwich.

Heat two large skillets over medium heat. Place two sandwiches in each pan. Cover with a lid for the first 3 minutes to help with melting the cheese. Remove lid and check the side of the sandwich that is down. When it is nice and golden, flip the sandwich to the other side. Continue cooking until the second side is golden brown and the cheese is melted. Serve sandwiches immediately.