Step 1

In a large Pyrex measuring cup, the 4 cup capacity ones are the best, combine the sugar, lemon juice and lemon zest.

Step 2

Now, again, I use salted butter. If you want to add another layer of taste, feel free to toss just a pinch of salt into the mix now. We all know how I feel about salt in icings, such as my buttercream icing recipe. The salt is a necessity to cut the sugar taste and add some complexity past that overwhelming sweet rush. Just the tiniest pinch, depending on how salty your butter is.

Step 3

Add in the butter then microwave on high for 45 seconds.

Step 4

Take out the measuring cup and whisk until smooth, making sure there are no lumps.

Step 5

Let it sit for a few minutes then pour it over your creation.