I make cakes ... Ask me anything! I'd love to help.
So I have a good recipe for royal icing and I'm not so I'm going to try to go ahead and turn it into English measure for you .. :)
Ingredients:
* (2.399 UK Tsp) 3 US Tablespoons Wilton Meringue Powder
* (454 g) 1 lb. (4 cups) confectioners' sugar (about 1lb.)
* (4.799 UK Tsp) 6 US Tablespoons warm water*
Beat all ingredients until icing forms peaks (7-10 minutes at low speed with a heavy-duty mixer, 10-12 minutes at high speed with a hand-held mixer). Recipe makes 3 cups.
NOTE: Keep all utensils completely grease-free for proper icing consistency.
* For stiffer icing, use 1 tablespoon less water.
**When using large countertop mixer or for stiffer icing, use 1 tablespoon less water.
Thinned Royal Icing: To thin for pouring, add 1 teaspoon water per cup of royal icing. Use grease-free spoon or spatula to stir slowly. Add ½ teaspoon water at a time until you reach proper consistency.
Never tried this but here's another recipe I found to use without meringue powder
Royal Icing Using Egg Whites:
2 large egg whites (60 g) <-- I suggest weighing because eggs differ in size so much.
(2.133 UK tsp) 2 US teaspoons fresh lemon juice
3 cups (330 grams) confectioners (powdered or icing) sugar, sifted
For Royal Icing with Egg Whites: In the bowl of your electric mixer (or with a hand mixer), beat the egg whites with the lemon juice. Add the sifted powdered sugar and beat on low speed until combined and smooth. The icing needs to be used immediately or transferred to an airtight container as royal icing hardens when exposed to air. Cover with plastic wrap when not in use.