Preheat the oven to 400° F.
Arrange the potatoes in a casserole dish with a lid. Pour over the beer and 2 cups water. Cover and bake for 45 minutes, until very soft.
Crank the heat on the oven to 425° F. Remove the potatoes and place them on a baking sheet. Using the back of a fork or a potato masher, smash each potato. Arrange slices of butter on top of the potatoes. Season with salt and pepper. Roast until the potatoes are crispy, 20-25 minutes.
Meanwhile, make the dip. In a bowl, mix the sour cream, yogurt, onion flakes, garlic powder, and salt. Spread the dip onto a serving plate.
Grab the potatoes and spoon the potatoes and brown butter over the dip on the serving plate. Top with scallions, basil, cilantro, and lemon. Season with sea salt.
