Amazing Vegan White Cheese Sauce

Name: Amazing Vegan White Cheese Sauce
Prep time: 5 min
Cook time: 35 min
Total time: 40 min
Cuisine: American
Ingredients: 2 cups cooked potato ((about 3-4 potatoes, see note)); 2 tablespoons cooked yellow pepper ((about 1/3 of a medium sized pepper)); 3 tablespoons cooked yellow carrots ((about 4-5 yellow baby carrots or one medium sized)); 5 tablespoons cooked sweet or yellow onion ((about 1/2 a small)); 1/2 cup raw cashews ((see note)); 1 teaspoon roasted garlic ((about 2-4 cloves, depending on size)); 2 teaspoons apple cider vinegar; ½ - 1 ½ teaspoons mustard seed powder ((use less or more according to how sharp you like the flavor, start with 1/2 and work up)); 1 1/4 teaspoons chickpea miso ((see note)); 1 1/2 teaspoons sea salt ((can use less or more depending on taste preference)); Your favorite pasta if making Mac and Cheese