
The humble sweet potato transforms into an extraordinary side dish with this perfectly balanced recipe. Each golden-brown smashed potato delivers crispy edges and a creamy center, enhanced by aromatic garlic butter and the nutty depth of Parmesan cheese. After years of experimenting with sweet potato recipes, this version has become my family's absolute favorite.
These smashed sweet potatoes have earned a permanent spot in my recipe collection after watching dinner guests fight over the last piece. The combination of garlic butter and Parmesan turns simple sweet potatoes into an addictive treat.
Ingredient Selection Guide
- Sweet potatoes: Choose firm, unblemished potatoes of similar size for even cooking
- Butter: European-style butter provides richer flavor and golden color
- Fresh garlic: Look for firm, heavy heads with tight cloves
- Parmesan cheese: Fresh grated Parmigiano-Reggiano offers superior melting and flavor
- Parsley: Select bright green, crisp bunches for the freshest taste
Creating Perfect Smashed Potatoes
- Initial Setup:
- Position your oven rack 6 inches from the broiler element. Preheat broiler to high. Gather all ingredients and tools, including a large pot, baking sheet, and potato masher or fork. This organization ensures smooth workflow.
- Sweet Potato Preparation:
- Wash sweet potatoes thoroughly under cool water. Cut each potato into evenly sized chunks, about 1½ inches thick. Consistent sizing ensures all pieces cook at the same rate. Remove any blemishes or dark spots.
- Cooking Foundation:
- Fill a large pot with cold water and add 1 tablespoon salt. Add potato chunks and bring to a boil. Reduce heat to maintain a gentle boil. Test tenderness frequently with a fork starting at 20 minutes. Potatoes should be tender but not falling apart.
- Smashing Technique:
- After draining, arrange potatoes on a well-oiled baking sheet with adequate spacing. Using a fork or potato masher, press down gently but firmly. Create a textured surface without completely crushing the potato. These ridges will become deliciously crispy.
- Flavor Enhancement:
- Combine melted butter with crushed garlic and chopped parsley. Drizzle this aromatic mixture evenly over each smashed potato, ensuring it seeps into all the crevices. Season generously with kosher salt and fresh black pepper.

My Italian grandmother taught me to always finish the dish with the best quality Parmesan you can find. She believed it was this final touch that elevated simple vegetables to memorable dishes.
Serving Inspiration
Present these golden beauties on a rustic platter garnished with fresh herbs. They pair beautifully with grilled meats, roasted chicken, or as part of a vegetarian feast. For extra indulgence, serve with a side of sour cream or aioli.
Delicious Adaptations
Experiment with different cheese toppings like crumbled feta or blue cheese. Add crushed red pepper flakes for extra heat, or drizzle with honey for additional sweetness. Try mixing herbs like rosemary or thyme into the garlic butter.
Smart Storage
Store leftovers in an airtight container for up to 3 days. Reheat in a hot oven until crispy again, avoiding the microwave which can make them soggy. For best results, enjoy fresh from the oven.

These smashed sweet potatoes represent comfort food at its finest. The combination of naturally sweet potatoes, savory garlic butter, and salty Parmesan creates an irresistible side dish that's become a staple in my kitchen. They prove that sometimes the simplest ingredients, prepared with care and attention, create the most memorable dishes.
Frequently Asked Questions
- → Which method is better - boiling or roasting the sweet potatoes first?
- Boiling is preferred as it helps the potatoes caramelize in their natural sweetness before broiling, but both methods work well.
- → How do I prevent the sweet potatoes from breaking when smashing?
- Use a fork and press gently, as the cooked sweet potatoes will be quite soft. Avoid pressing too hard to maintain their shape.
- → Can I prepare these in advance?
- You can boil or roast the potatoes ahead of time, but wait to smash and broil them until just before serving for the best texture.
- → What type of sweet potatoes work best?
- Choose longer, wider sweet potatoes for larger smashed pieces. The fatter the sweet potato, the better the final result.
- → How do I know when they're done broiling?
- The sweet potatoes should be golden and crispy on top, which typically takes about 15 minutes under the broiler.