Please help! I'm baking a cheesecake tomorrow night and the recipe calls for 2 teaspoons peppermint extract. I have peppermint oil and I'm sure the equivalent of oil is much less than extract. Does anybody know the ratio? I also have "mint" extract but it lists spearmint as well as peppermint on the label. I assume that this will make a difference in the recipe.....or might it be ok to use it? Thanks in advance!