Caramelized Onion Sweet Potato Mash
Creamy sweet potato mash folded with deeply caramelized onions, olive oil, and a hint of thyme. Naturally sweet, savory, and comforting—this side pairs beautifully with roast chicken, fish, lamb, or vegetarian bowls. No spice, just rich Mediterranean flavor.
Prep: 10 minutes
Cook: 30–35 minutes
Total: ~45 minutes
Serves: 4
Ingredients
3 medium sweet potatoes, peeled & cubed
2 large onions, thinly sliced
3 tbsp olive oil
½ tsp salt (or to taste)
¼ tsp black pepper
½ tsp dried thyme or rosemary
2–4 tbsp warm milk or vegetable broth (as needed)
Optional finish: goat cheese or Greek yogurt
Instructions
1️⃣ Cook Sweet Potatoes
Add sweet potatoes to salted boiling water
Cook 15–18 minutes until very tender
Drain well and steam-dry 2 minutes
2️⃣ Caramelize Onions
Heat 2 tbsp olive oil in a wide pan over medium-low heat
Add onions and a pinch of salt
Cook 20–25 minutes, stirring occasionally, until deep golden and jammy
Stir in thyme and butter (if using)
3️⃣ Mash
Mash sweet potatoes with remaining olive oil
Add warm milk/broth gradually until creamy
Season with salt and pepper
4️⃣ Combine & Serve
Fold caramelized onions through mash
Taste and adjust seasoning
Finish with a drizzle of olive oil or crumble of goat cheese
Why This Is So Good
Natural sweetness from both onions & sweet potatoes
Slow caramelization = deep flavor
Creamy without being heavy
Elegant enough for guests, easy enough for weeknights
Tips
Low heat is key for onions—don’t rush
For ultra-smooth mash, use a potato ricer
Add a splash of lemon juice if you want balance
Make ahead: reheat gently with a little milk
Nutritional Information
Calories: ~230
Protein: 3 g
Carbs: 34 g
Fat: 9 g
Fiber: 5 g