Step 1

Using a microwave, heat the butter 15 seconds at a time, just until melted. Alternatively, melt the butter in a small saucepan on the stovetop over low heat.

Step 2

Into a high-speed blender, add the butter and milk. Blend on medium-high for about 5 minutes, until the mixture is thickened slightly. and has a smooth consistency. (Exact time may vary depending on your blender speed.) Alternatively, an immersion blender can also be used in the saucepan, off heat.

Step 3

Use in place of 1 cup of heavy cream.