Step 1

In a medium saucepan, heat the butter over medium-low heat until melted (or warm oil). Add the gluten-free flour and whisk until smooth. Over medium heat, cook until the mixture turns a light, golden sandy color, about 6 to 7 minutes.

Step 2

Meanwhile, heat the milk in a separate pan until just about to boil. Add the hot milk to the flour mixture 1 cup at a time, whisking continuously until very smooth. Bring to a boil. Cook 10 minutes, stirring constantly, then remove from heat. Season with salt and nutmeg, and set aside until ready to use.