Place potatoes into a large stock pot or sauce pan and fill with water, making sure the water is at least 1" above the potatoes. Heat over medium high heat for about 30-40 minutes or until potatoes are soft when a fork is inserted in the center. Drain potatoes and let stand to cool, or refrigerate for 30 minutes to cool.
Roast Potatoes
Preheat oven to 400 and line a baking sheet with parchment paper. Set aside.
Place butter and oil in a skillet and heat over medium heat until melted.
Stir in garlic cloves and cook for 1 more minute. Remove skillet from heat.
Toss whole potatoes into butter mixture and stir to coat. Place potatoes onto the prepared baking pan.
Using the bottom of a glass, gently press down on each potato to flatten to about 1/2" thickness.
Spread potatoes out so they are not touching and drizzle any leftover garlic butter mixture onto potatoes.
Season with salt and pepper. Roast for 40 minutes or until crispy and hot.
Top with chopped fresh parsley before serving.
Notes
This recipe requires prep. Boil potatoes to fork-tender and roast fresh garlic cloves. Jarred garlic cloves can be used in a pinch but the freshly roasted ones are worth the time. Instructions are in full post for this method and we have a full article on it. Other seasonings that go great on smashed potatoes are pepper flakes, chili powder, paprika, and flaky sea salt.