Spicy Summer Soup with Horseradish

Number of Servings: 4-6

1 Tbsp. Bottled white horseradish, well drained
1 Tbsp. Prepared yellow mustard
1 Large Roma tomato, seeded and finely diced
1 Cup Chopped arugula
1/4 Cup Chopped scallions and green tops
1/2 Cup Chopped mixed herbs (parsley, basil, coriander)
1 Quart Buttermilk
Salt and white pepper, to taste

In a bowl or pitcher, mix all ingredients together. Taste a spoonful and add salt and white pepper to taste. Chill, covered for at least 3 hours.