Maple Sweet Potato Pie Bars

Maple sweet potato pie bars are the sliceable, shareable answer to sweet potato pie: a buttery shortbread base, a silky spiced sweet potato filling, and a glossy maple glaze that drips down the sides. They taste like Thanksgiving in a neat little square, and they travel far better than a whole pie ever could.

The trick is roasting the sweet potatoes until they collapse — boiled sweet potato makes a watery filling, roasted makes it rich and caramel-sweet. The maple syrup goes in twice: once in the filling for depth, once in the glaze for shine.

Cut them cold for the cleanest edges, then let them warm up for ten minutes before serving with a cloud of whipped cream. They are the bars people ask the recipe for before they have finished chewing.

Ingredients

For the shortbread base

• 200 g (1½ cups) plain flour
• 100 g (½ cup) caster sugar
• ¼ tsp fine sea salt
• 170 g (¾ cup) unsalted butter, cold and cubed

For the sweet potato filling

• 500 g (2 cups) sweet potato purée, from about 2 large sweet potatoes
• 100 g (½ cup) light brown sugar
• 60 ml (¼ cup) pure maple syrup
• 2 large eggs
• 120 ml (½ cup) double cream
• 1 tsp vanilla extract
• 1 tsp ground cinnamon
• ½ tsp ground ginger
• ¼ tsp ground nutmeg
• ¼ tsp fine sea salt

For the maple glaze and topping

• 60 ml (¼ cup) pure maple syrup
• 30 g (2 tbsp) unsalted butter
• 120 g (1 cup) icing sugar, sifted
• 1 tbsp double cream
• 60 g (½ cup) chopped pecans
• Whipped cream, to serve

Instructions

1. Roast the sweet potatoes: Heat the oven to 200°C (400°F). Prick the sweet potatoes all over, roast on a tray for 45 to 50 minutes until completely soft, then scoop out the flesh and mash until smooth. You need 500 g (2 cups) of purée.
2. Make the base: Lower the oven to 175°C (350°F). Line a 20 x 20 cm (8 x 8 inch) tin with baking paper. Rub the flour, sugar, salt and cold butter together until it looks like damp sand, then press firmly and evenly into the tin. Bake for 18 to 20 minutes until pale gold at the edges.
3. Mix the filling: Whisk the sweet potato purée with the brown sugar, maple syrup, eggs, cream, vanilla, cinnamon, ginger, nutmeg and salt until completely smooth. Pour over the hot base and smooth the top.
4. Bake: Return the tin to the oven and bake for 30 to 35 minutes, until the edges are set and the centre barely wobbles when you nudge the pan. Cool completely in the tin, then refrigerate for at least 2 hours.
5. Glaze: Warm the maple syrup and butter in a small pan until the butter melts. Whisk in the icing sugar and cream until smooth and glossy. Pour over the chilled bars and spread to the edges.
6. Slice and serve: Lift the slab out with the baking paper and cut into 12 bars with a hot, dry knife, wiping between cuts. Top each bar with whipped cream and chopped pecans.

Tips for the best result

• Roast, never boil, the sweet potatoes — roasting concentrates the flavour and keeps the filling thick.
• Press the base down firmly with the bottom of a glass so it bakes into one even layer.
• Cut the bars while cold with a hot knife for bakery-clean edges.
• Use real maple syrup, not pancake syrup — the flavour is the whole point of the glaze.

Storing and reheating

Refrigerate in an airtight container for up to 4 days, or freeze unglazed bars for up to 1 month. Thaw overnight in the fridge and glaze before serving.

Frequently asked questions

Can I make these gluten-free?

Yes — use a gluten-free biscuit or graham cracker crumb for the base and check that your baking powder is gluten-free.

Can I make these dairy-free?

Yes, swap the butter for the same weight of coconut oil and use a dairy-free cream cheese. The bars will be a touch softer but still slice cleanly when chilled.

Should the bars be served cold or at room temperature?

They keep best in the fridge and slice most cleanly when cold. Let them sit at room temperature for 10 minutes before serving so the filling softens slightly.

Why did my bars not set properly?

The filling was underbaked. Bake until the centre barely wobbles when you nudge the pan, then chill for at least 2 hours — the chill is what sets the slice.