These sweet potato pie bars deliver the creamy, spiced flavor of a classic pie on a buttery graham cracker crust, cut into neat squares.
They bake in a single eight inch pan with simple pantry ingredients and no pie dough to roll. Allow about two hours in total, which includes cooling time so the bars slice cleanly.
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Why This Sweet Potato Pie Bars Recipe Works
The graham crust is pressed and pre baked, so it stays crisp under the smooth filling instead of turning soft.
Evaporated milk and eggs make a custard that sets firmly, giving the bars a silky center that cuts into clean squares.
Cinnamon and nutmeg bring warm spice, while brown sugar adds a gentle caramel note that suits sweet potato.
Ingredients for Sweet Potato Pie Bars
- For the crust: 1 1/2 cups graham cracker crumbs, 1/2 cup melted unsalted butter, and 1/4 cup light brown sugar.
- For the filling: 2 cups mashed sweet potatoes, 1/2 cup light brown sugar, 2 large eggs, 1/2 cup evaporated milk, 1 teaspoon vanilla extract, 1 teaspoon cinnamon, 1/2 teaspoon nutmeg, and 1/4 teaspoon salt.
- For the topping: Whipped topping and chopped pecans, both optional.
Sweet potatoes. Bake or boil about two medium potatoes until soft, then mash them smooth with no lumps.
Graham cracker crumbs. They create a sweet, sandy crust that supports the custard.
Evaporated milk. It gives richness and a concentrated flavor without watering down the filling.
Light brown sugar. The molasses in it adds depth that matches the earthy sweet potato.
Spices. Measure the nutmeg carefully, since a little goes a long way.
How to Make Sweet Potato Pie Bars
1. Prepare the pan Heat the oven to 350 degrees F. Line an eight by eight inch baking pan with parchment, leaving extra paper over the sides as handles.
2. Mix the crust Stir the graham crumbs, melted butter, and brown sugar until they look like wet sand.
3. Press and pre bake Press the mixture firmly into the pan and bake for ten minutes. Let it cool slightly while you make the filling.
4. Whisk the filling Beat the sweet potatoes with the brown sugar, eggs, evaporated milk, vanilla, cinnamon, nutmeg, and salt until completely smooth.
5. Pour and bake Spread the filling over the crust and bake thirty five to forty minutes until the center is set and reaches 160 degrees F.
6. Cool completely Cool the pan on a rack for one hour, then chill briefly so the bars firm up.
7. Slice and top Lift the bars out with the parchment, cut into nine squares, and add whipped topping and pecans if you like.
How to Serve Sweet Potato Pie Bars
Serve the squares cold or at room temperature with a scoop of passion fruit ice cream or a dollop of whipped topping. They go well with dark chocolate mousse on a dessert table, cinnamon brown sugar pound cake for slicing, and a cup of caramel coffee frappe.
How to Store and Reheat Sweet Potato Pie Bars
Cover the pan and refrigerate the bars for up to four days. Do not leave them at room temperature longer than two hours because the filling contains egg and milk. For longer storage, wrap squares tightly and freeze them for up to two months, then thaw in the refrigerator overnight.
Tips and Variations for Sweet Potato Pie Bars
Drain well. Steam or bake the sweet potatoes instead of boiling, since extra water keeps the filling from setting.
Mash smooth. Use a food processor or mixer for a silky texture without fibrous strings.
Press evenly. Use the bottom of a measuring cup to pack the crumbs into an even crust.
Test for doneness. The center should look set with only a slight wobble, and it firms up more as it cools.
Try pecans. Toast chopped pecans for a few minutes in a dry skillet before topping the bars.
Flag the allergens. These bars contain milk, egg, and wheat, plus tree nuts if you add pecans, and soy may appear in the crumbs.
Chill promptly. Refrigerate within two hours and keep the bars cold until serving.
Check trusted guidance. The University of Wisconsin Extension leftovers guidance covers safe handling for egg based desserts.
Frequently Asked Questions About Sweet Potato Pie Bars
Can I use canned puree for sweet potato pie bars?
Yes. Use plain canned sweet potato puree, not pie filling, and measure two cups.
How do I know when sweet potato pie bars are done?
The edges look set, the center barely moves, and a thermometer reads 160 degrees F.
Can I make sweet potato pie bars ahead of time?
Yes. Bake them a day early, cool, cover, and chill. Top them just before serving.
Can I use a different crust?
Crushed gingersnaps or shortbread cookies make a good swap and add extra spice.
Why did my filling crack?
Overbaking or cooling too quickly causes cracks. Pull the pan when the center is set and cool it gradually.
Sweet Potato Pie Bars
Equipment
- 8 by 8 inch baking pan
- Mixing bowls
Ingredients
Main Ingredients
- 1 cup graham cracker crumbs plus 1/2 cup more
- ½ cup unsalted butter melted
- ¼ cup light brown sugar for the crust
- 2 cup mashed sweet potatoes from about 2 medium sweet potatoes
- ½ cup light brown sugar for the filling
- 2 large eggs
- ½ cup evaporated milk
- 1 tsp vanilla extract
- 1 tsp cinnamon
- ½ tsp nutmeg
- ¼ tsp salt
- 1 cup whipped topping optional
- ½ cup chopped pecans optional
Instructions
Cooking
- Make the crust. Heat the oven to 350 degrees F and line an 8 by 8 inch pan with parchment. Mix the crumbs, butter, and 1/4 cup brown sugar, press firmly into the pan, and bake for 10 minutes.
- Mash the filling. Whisk the sweet potatoes with 1/2 cup brown sugar, eggs, evaporated milk, vanilla, cinnamon, nutmeg, and salt until smooth.
- Pour and bake. Spread the filling over the warm crust and bake for 35 to 40 minutes until the center reaches 160 degrees F.
- Cool. Cool the pan on a rack for 1 hour, then refrigerate until firm.
- Top and slice. Cut into 9 squares and add whipped topping and pecans just before serving.
