This is what I get for too much multi-tasking. Baking a cake while doing 5 other things, I added baking soda instead of baking powder (1/2 tsp.) Realizing this mistake, I added the baking powder at the end, mixing it into the already-poured cake batter. I have someone coming over this afternoon. Is this cake going to be edible? Do I need to pitch it and start over? Have limited time, would love anyone's advice! Thanks.