Caramelized Onion and Gruyere Biscuits

My husband prepared these as a main dish which we ate along side a big salad. The biscuits were large and super flavorful. Do be warned, though, that they are not an all-purpose biscuit, though they might be nice along side a fairly simple soup (e.g. carrot). The recipe was a bit involved, as it entailed caramelizing onions first. As is typically the case, its hard to judge just how many biscuits are required, and I think we had too many onions, which led to very moist (but still delicious) biscuits.