Gnocchi with cheese and almonds sauce

5 tbsp butter
4 tbsp flour4 cups whole milk
1 cup heavy cream
1 cup grated Asiago cheese
1/2 cup Parmiggiano or Grana Padano
3 tbsp Gorgonzola (optional)
Salt & Pepper
1/2 tea spoon nutmeg
1/2 cup chopped almonds

In a medium saucepan, heat the butter over medium-low heat until melted. Add the flour and stir until smooth. Over medium heat, cook until the mixture turns a light, golden sandy color, about 6 to 7 minutes.
Meanwhile, heat the milk in a separate pan until just about to boil. Add the hot milk to the butter mixture 1 cup at a time, whisking continuously until very smooth. Bring to a boil. Cook 10 minutes, stirring constantly, then remove from heat. Add the cream and cheeses. Season with salt and nutmeg, and set aside until ready to use. In a different pan, toast the almonds with olive oil or butter and add to the sauce.