4 TBL four
1/2 tsp onion powder
1/2 tsp garlic powder
1/4 tsp black pepper
1 cup beef stock
1 cup chicken stock
1 TBL butter
Make a roux by cooking 4 TBL butter and flour together for a few minutes
Stir in the spices
While whisking add in the stocks. Keep stirring until desired thickness.
Taste and add salt if needed.
Once it's done stir in the last TBL of butter to give it a nice shine.