The Measuring Cup is an item found in Fatty Bear's Birthday Surprise.
Fatty Bear's Birthday Surprise Edit
Fatty Bear will need the measuring cup in order to make Kayla's birthday cake. Fatty Bear will find the cup in either a cabinet in the bathroom or a kitchen cabinet where the egg beater and (sometimes) other kitchen tools are in. After Fatty Bear enters the kitchen with the measuring cup, he will automatically place the cup on the counter.
When used for making the cake, the measuring cup is used to measure how much milk, sugar, and flour is needed for the cake.
A singing measuring cup appears in Darkness's kitchen. As with most characters that are clicked on in Darkness' kitchen, the measuring cup will sing a song if the player clicks on him.