I made tiramisu and had a lot of leftover espresso and rum mixture from dipping the ladyfingers. It's a high quality espresso and a really nice rum...I feel dumping 2-3 cups down the drain would be a waste (yeah, I had a lot leftover). I don't really enjoy coffee that much, so drinking it is not an optimal option. I took it and froze it. What's a girl to do?