For the Onions-
In a large skillet over medium heat melt the butter and add the olive oil. Add your onions and saute for a few minutes until they begin to get soft. Add the 2 tablespoons sugar and turn the heat down a little. Continue cooking for about 20 minutes until they are a golden brown. Drain any excess oil and set aside to cool. (I take mine out and place on a couple of paper towels to absorb any excess oil.)
Cook pasta in salted water until al dente. Meanwhile, melt butter in a saucepan over medium heat. Add the minced garlic, diced Chipotle and sauce. Cook for a minute until fragrant. Add your flour and whisk constantly for about 2 minutes. Slowly add milk and bring to a boil and simmer for a minute until it thickens. Remove from the heat and add the cheese a handful at a time stirring until melted. Add the caramelized onions and pasta and mix thoroughly.
Place in a baking dish and bake at 375 degrees for about 30 minutes.
|