Depends on the size of the cup
Icing sugar is normal white granulated sugar that has been powdered to be very very fine.
No. Icing is full of fat and sugar and is bad for any kind of bird.
Yes it will the same as any other sugar, like white refined or icing sugar
Royal icing and butter icing are completely different products. Royal icing is made with beaten egg whites (often as dry egg white powder) which break down when in contact with any fat or oil. Butter icing has a very high fat content, so the two types of icing are not compatible. If for some reason no sugar is available to make butter icing, it might be possible to reduce completely dry royal icing to a powder in a blender or food processor, then use that in place of powdered sugar for the butter icing. But that would be a very odd way of getting sugar by way of reverse engineering.
i would not use granulated sugar while making buttercream icing. i would only use icing sugar. icing sugar usually has cornstarch mixed in with the powdered sugar. even if you added cornstarch to granulated sugar it would still give you a completely different texture than icing sugar...it would feel very gritty.
Sooki-Yaki's main ingredients are Chocolate Cake and Pink Strawberry Icing. Just add the milk, flour, sugar, eggs, butter, and the cocoa. Mix, then put all the mix into the cups and bake. Put on the Pink Strawberry Icing, any amount. Do not add any toppings as you might get a different moshling.
butter flavor crisco, maple syrup, honey and vanilla
this works with any icing, all you have to do is add a bit of cream cheese.
Dissolving will depend on surface area. Castor sugar has a smaller particle than regular sugar. The smaller the particle the larger the surface area. Surface area: Regular sugar < castor sugar < icing sugar. Castor sugar should dissolve faster than the same mass of regular sugar but slower than the same mass of icing sugar.
Two cups of sugar are in one pound. Two cups is close enough for cooking. The density (mass per unit volume) will vary depending on the grain size and shape of the sugar granules. The greater the air voids between the grains, the lower the density. Powdered sugar and raw sugar have different grain structures which give different densities. Look on the package. The 4 pound package (not 5 pounds like it once was), I am looking at says it contains approximately 9 cups. This does not mean there is more sugar because there are more cups. It means there is less sugar (by weight) in a cup.
Icing sugar is finely ground sugar, which when added to whisked egg whites makes Royal Icing. Royal Icing sugar is finely ground suger pre-mixed with dried, pasteurised egg white. This is good if you want to avoid the "risk" associated with raw eggs. However, the ratio of egg white to sugar is fixed and the only adjustment which can be made is to add water (or lemon juice/glycerine) to vary the texture.
it depends on the size of the crystal, powered sugar obviously has more than a normal bag of sugar. You could have a one pound crystal of sugar too, it's far to many to count in any of these cases.