Peel onions and cut into 1/4 inch slices. heat oil in heavy or iron skillet on medium heat, add onions, stir, cover cook for about 15 minutes stirring occasionally, onions should be browned and softened.
In large bowl combine cheddar, flour and cayenne, add ale and mustard to onion mixture, stir cheese mixture to skillet and stir to combine,,add rest of cheese and curds and cook and stir until cheese has melted..remove from heat.
Recipe can be made to this point and then placed on top shelf of heated barby, stirring occasionally for 8 to 10 minutes until cheese has melted. To serve sprinkle top of cheese mixture in skillet with bacon, green onions and maple syrup. Have crusty bread, blanched broccoli, sweet green peppers and any other vegie you have on hand. leftovers can be reheated and recipe can also be cut in half.