Step 1

In a medium-size saucepan, heat butter and olive oil over medium heat until butter is melted. Add the flour and whisk until smooth. Cook flour mixture for 1 minute, stirring frequently.

Step 2

Add the spices and brown sugar and cook for 30 more seconds, until fragrant.

Step 3

Add chicken broth, vinegar and tomato paste and whisk until well combined. Bring to a simmer and cook for 4-5 minutes until sauce is thickened and bubbly.