10 tablespoons unsalted butter, cubed, room temperature
7 slices white bread (or enough to make 1 cup breadcrumbs)
1 ¼ cup golden syrup
½ cup heavy whipping cream
1 lemon, zested
4 tablespoons lemon juice
1 egg
Directions
Preheat the oven to 375 F.
Whisk together the flour, brown sugar, and salt in a mixing bowl. Add the vanilla and cubed butter and mix until it becomes a crumbly texture. When the mixture is done it resembles large streusel-like crumbs. Press some in between your fingers to see if it will hold together.
Put the crust mixture in a 9-inch pie tart. Use your hands or the back of a spoon to press the crust firmly and evenly into the pan.
Line the crust with parchment paper and fill it with dried beans or pie weights and place the tart on the middle shelf in the oven.
Bake for 10-12 minutes, then remove the parchment paper and beans. Bake for another 5 minutes until it becomes a golden brown color. Let it cool.
Use a food processor and pulse the bread. Pulse a few more times until the bread resembles coarse crumbs.
In a medium saucepan, add the golden syrup, heavy whipping cream, breadcrumbs, lemon zest, lemon juice, and egg. Bring it to a gentle boil on medium-high heat, stirring constantly to keep from sticking.
When the syrup reaches a gentle boil, reduce the heat and cook for another 2 minutes. Remove from heat.
Pour the filling into the baked shortbread crust. Bake for 25 minutes until the filling becomes nicely browned.
Remove the tart from the oven and let it cool completely.
Optionally garnish the tart with powdered sugar and whipped cream, then slice and serve.