Prepare Potatoes : Peel and cut potatoes into evenly sized chunks for uniform cooking.
Boil Potatoes : Place potatoes in a large pot, cover with salted water, and bring to a boil. Reduce heat and simmer for 15–20 minutes until potatoes are fork-tender.
Drain u0026 Return : Drain potatoes and return them to the pot or a large mixing bowl.
Brown Butter : In a small saucepan, melt 4 tbsp butter over medium heat. Continue cooking, swirling occasionally, until butter turns golden brown and releases a nutty aroma. Remove from heat.
Mash u0026 Mix : Mash the cooked potatoes using a potato masher or fork. Add pumpkin puree and brown butter, then stir to combine.
Milk u0026 Seasoning : Pour in milk or cream, season with salt and black pepper, and stir until smooth and creamy. Adjust seasoning to taste.
Serve : Transfer mashed potatoes to a serving dish, garnish with chopped parsley or thyme, and serve warm.