2 tablespoons olive oil
1 tablespoon butter
3 tablespoons all-purpose flour
1 12-ounce India Pale Ale, room temperature
1 tablespoon dark molasses
1 teaspoon Worcestershire Sauce
1/2 teaspoon cayenne pepper
1 1/2 cups shredded Gruyère
1 1/2 cups shredded sharp cheddar