I'm using a 16oz bag of marshmallows. It calls for a 10oz bag. How many cups is that?
If you don't have a scale handy, I would wing it by evenly counting out the 16 oz bag of marshmallows into 8 even piles. There will be 2 oz in each pile. Use 5 of the piles to equal the 10 oz needed for your cheesecake.
Also found this on the web:
Kraft Foods says:
For JET-PUFFED Marshmallows:
Conversions for Marshmallows and Marshmallow Creme:
7 oz Marshmallow Creme = approximately 1-1/2 cups
13 oz Marshmallow Creme = approximately 3 cups
1 Regular Marshmallow = 13 Miniature Marshmallows
8 Regular Marshmallows = 1 cup
16 oz bag Miniature = 8 cups
10.5 oz bag Miniature = 5-1/2 cups
50 Miniature Marshmallows = 1/2 cup Miniature Marshmallows
5 Regular Marhsmallows = 1/2 cup
64 Regular Marshmallows = 16 oz bag