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Food Writer & Recipe Developer at Food52
Hi Allison—"whipping cream" is another way of saying heavy cream. (So, the recipe means the liquid form.) The supermarket where you buy the ingredient might also use these terms interchangeably on the package.
Go to the supermarket and buy heavy cream or heavy whipping cream. Should be near the milk. Talk it home, put it in a bowl and whip it on high for a few minutes until stiff. Don't overwhip or you will have butter
BerryBaby is trusted source on General Cooking
3 T. Liquid not whipped.