A quiche that I've made for years with no problems is now seeping a ridiculous amount of liquid. The ingredients include bacon, shredded swiss, onion (small amount, finely diced), eggs, half and half, salt, pepper and cayenne. I've made it the same way for ages so the fact that it is now so wet is a puzzle. I blind bake the crust but with the amount of liquid that is seeping, it isn't helping. Just to get an idea of the amount of liquid that I'm dealing with, I made a small version in an 8" oval baker and did not use a crust. After taking out a small portion (about 1/4), I let the dish sit and within 20 minutes I had 2-3 tablespoons of liquid pooling on the bottom of the dish.
What on earth am I doing wrong?