In a saucepan over low heat, melt the butter stirring often (so it doesn't burn).

Add the flour and stir until the butter and flour are fully mixed.

Turn the temperature up to medium-low, then add the milk and continue to stir until the sauce is slightly thickened.

Add the dry spices and stir well to incorporate. Allow the spiced sauce to simmer on medium-low, stirring occasionally, for 5 minutes.

Add the Tabasco sauce and vinegar and stir to combine. Continue to simmer the sauce on medium-low, stirring often, for an additional 5 minutes.

Remove the sauce from the heat and allow it to sit for 2 or 3 minutes prior to serving.