Dill and Horseradish Potato Salad

Ingredients (12)

• 1 pound small potatoes
• 1 can garbanzo beans, drained
• 1/4 cup chopped red onion
• 1/4 cup mayonnaise
• 1/3 cup plain yogurt
• 1 to 2 cloves garlic, minced
• 3 tablespoons finely chopped fresh dill
• 1 tablespoon Dijon mustard
• 1 teaspoon sugar
• 1 teaspoon prepared horseradish
• 2 teaspoons kosher salt, divided, plus more to taste
• 1/2 teaspoon black pepper