In a small skillet, stir 2 teaspoons ground pepper, 2 teaspoons ground anise, 1 teaspoon ground cinnamon, 1 teaspoon ground cumin and a pinch ground cloves over medium-low heat until fragrant, 3 to 5 minutes. Transfer to a bowl and let cool. Stir in 2/3 cup grainy mustard and 1/3 cup Dijon mustard.
