Place potatoes in a large pot of water and bring to a boil; boil until potatoes are cooked.
While potatoes are cooking, make the pesto.
Combine all pesto ingredients in a blender or food processor and pulse until combined; set aside.
Once potatoes are cooked, drain them and then place them on two separate baking sheets.
Use a fork or potato masher to carefully smash the potatoes.
Brush each potato with a bit of olive oil (I like to pour the olive oil in a ramekin and use a marinade brush for this), and then sprinkle each one with salt and pepper.
Place baking sheets in the oven and bake the potatoes for approximately 20 minutes, or until the potato skins become crispy.
Top each potato with a spoonful of pesto and enjoy!
Notes
*Feel free to add additional water 1 tablespoon at a time if pesto won't mix