Whisk in the flour and cook, stirring constantly, until it starts to become golden, about 4 minutes.
¼ cup all-purpose flour
Slowly add the chicken broth, whisking constantly.
1 ½ cups chicken broth
Stir in the diced tomatoes and sugar. Season with salt and pepper.
1 ½ cups canned diced tomatoes, 1 teaspoon sugar
Bring to a simmer and cook until the liquid thickens, stirring occasionally, about 2 to 3 minutes.
If desired, you can sprinkle some fresh chives on top. Serve over biscuits, rice, mashed potatoes, cornbread, polenta, eggs, pork, chicken, meatloaf, etc.