I grew up thinking sweet potato pie was just pumpkin pie’s cooler, sweeter cousin—and once I ditched sugar, I wasn’t ready to ditch it too. So I tested a few tweaks and found the balance: use real sweet potato, keep the carbs under control with small servings, and surround it with fat, fiber, and no sugar to stabilize the whole slice.
This pie tastes like the holidays: warm spice, smooth texture, no blood sugar spikes. It won’t fit strict keto macros, but it’s a legit win for anyone eating low-carb or moderate-carb with purpose.
💡 What Solves the “Sweet But Spiky” Problem
- Real sweet potato in moderation gives authentic flavor and texture—no weird substitutes
- Almond flour crust instead of pastry = fewer carbs, more fat and fiber
- Allulose + Swerve Brown combo = caramelized sweetness without impact
- Half & half adds creaminess without too much lactose (less sugar than milk)
🧾 What I Used (And Why It Worked)
🥧 Crust:
- Almond flour (2 cups) – Naturally low-carb, nutty, holds up when baked
- Melted butter (5 tbsp) – Fat for structure and flavor
- Allulose or erythritol blend (⅓ cup) – No sugar, still sweet
- Cinnamon + salt – Adds warmth and balances sweetness
🍠 Filling:
- Sweet potatoes (3 medium = ~1½ cups mashed) – Adds richness and natural sweetness, moderate in carbs
- Butter (3 tbsp, softened) – Adds creaminess and depth
- Brown sugar substitute (1 cup) – Swerve Brown or Lakanto Golden works well
- Half & half (½ cup) – Creamier than milk, lighter than heavy cream
- Eggs (2 large) – Binds and sets the filling
- Cinnamon, nutmeg, ginger – Classic spice combo
- Vanilla extract (2 tsp) – Boosts flavor
🔁 Adapting It Without Wrecking Texture
Swap | Result |
---|---|
Heavy cream instead of half & half | Richer, higher fat, slightly lower carb |
Coconut milk | Dairy-free, but adds mild coconut flavor |
Monk fruit/allulose blend only | Works great, but go easy if you’re sensitive to sweetness |
Mashed pumpkin instead of sweet potato | Cuts carbs a bit, but changes texture and flavor (pumpkin is wetter) |
⚠️ Keto Missteps and How I Fixed Them
What Went Wrong | Why It Happens | How to Fix It |
---|---|---|
Pie too loose | Not baked long enough | Use the knife test near the edge—not just the center |
Grainy filling | Didn’t mash/puree sweet potatoes well enough | Use food processor or hand mixer |
Crust burned | Ovens vary | Check at 30 min and cover edges with foil if needed |
Watery base | Too much half & half or undercooked sweet potatoes | Stick to ½ cup and bake potatoes fully |
👩🍳 How to Make It (Step-by-Step)
- Bake sweet potatoes at 375°F for 45–60 min until soft. Cool, peel, and mash.
- Make crust: Mix almond flour, melted butter, sweetener, salt, and cinnamon. Press into pie plate, poke holes, and bake at 325°F for 8 min.
- Lower oven to 325°F.
- Blend mashed sweet potato with butter, brown sweetener, half & half, eggs, spices, and vanilla until smooth.
- Pour filling into pre-baked crust.
- Bake 45–60 min. Check after 30 min; cover crust edges if browning too fast.
- Let cool completely. Refrigerate before serving. Top with sugar-free whipped cream.

🧠 What I Do Now (That I Didn’t at First)
- I always bake and prep sweet potatoes the day before—it makes mixing faster and cools the starch.
- I portion into 8 slices and freeze 4. It’s too good to trust myself with in the fridge.
- Use a food processor if you want ultra-smooth filling—totally worth it.
🧊 Keeping It Keto-Friendly All Week
- Fridge: Keeps 4–5 days covered
- Freezer: Slice first, then freeze individually. Reheat in toaster oven or let thaw in fridge
- Macros after chilling: Solid and sliceable—no extra water loss
❓ Can I Eat This on Keto? (Yes, Here’s Why)
Is this strict keto?
No. Sweet potatoes aren’t keto, but this recipe is low-carb friendly at 1/8 slice (about 13g net carbs). Perfect for holiday moderation.
Can I lower the carbs more?
Yes—sub ½ the sweet potato for mashed pumpkin or rutabaga (trust me), or serve smaller slices.
Is the crust sturdy?
Yes. No soggy bottom here. Just don’t skip the par-bake.
🧮 Nutrition Facts (Per Slice – 1/8 of Pie)
Nutrient | Amount |
---|---|
Calories | ~265 kcal |
Fat | 22 g |
Protein | 6 g |
Total Carbs | 18 g |
Fiber | 5 g |
Net Carbs | 13 g |
Sugar | ~3 g (from sweet potato) |
Sugar Alcohols | ~6 g (not included in net) |
Check out More Recipes:
- Sugar-Free Chocolate Pie – French Silk Fantasy, Minus the Sugar Crash
- Sugar-Free Blueberry Pie – Sweet, Fruity, and Low-Carb Friendly
- Sugar-Free Rice Krispie Treats – Low-Carb, Marshmallowy, and Only 1g Net Carb

Sugar-Free Sweet Potato Pie – Cozy, Creamy, and Low(er) Carb Holiday Comfort
Description
Creamy, warmly spiced sweet potato pie with a buttery almond flour crust—rich in flavor, free of sugar, and low-carb friendly.
Ingredients
Crust:
Filling:
Instructions
- Bake sweet potatoes at 375°F for 45–60 minutes. Cool, peel, mash.
- Lower oven to 325°F. Make crust: Mix crust ingredients, press into pie pan, poke holes, and bake for 8 minutes.
- Mix mashed potatoes with all filling ingredients until smooth.
- Pour into crust, bake 45–60 minutes, checking crust after 30 min.
- Let cool completely before slicing. Chill at least 1 hour for best texture.
Notes
- For fewer carbs, sub half the sweet potato with pumpkin.
- Let pie cool completely—don’t rush slicing or it’ll fall apart.
- If edges brown too fast, use foil shields.
- Crust is freezer-friendly. You can prebake it and fill later.