Potato Tacos

Name: Potato Tacos
Ingredients: 1/2 c. mayonnaise; 1 tbsp. sauce from can of chipotles in adobo; Juice of ½ lime; Kosher salt; 1 lb. Russet potatoes (about 2 large), peeled and quartered; 1/2 tsp. garlic powder; 1/2 tsp. smoked paprika; 1/2 tsp. freshly ground black pepper; 1/4 tsp. ground cumin; 1/4 tsp. cayenne; 2 tbsp. extra-virgin olive oil; Corn tortillas, warmed; 1 avocado, sliced for serving; Pickled red onions, for serving; Cotija cheese, for serving; Fresh cilantro, for serving