I have made these 2 times LOVE LOVE them, But I need some help or any suggestions if anyone has made these, I can't seem to get the tortilla cups to work out in the mini muffing pan, they tear and won't stay formed before they go into the oven. I used a bag of Tortilla scoops tonight at home and that was still just as good, but would like to know if there is a trick to the cups. TIA