Instructions
1. Make the Crust:
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Gradually mix in the flour and salt. Add milk, one tablespoon at a time, and mix just until a crumbly dough comes together. Be careful not to overwork it.
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Turn the dough out onto a lightly floured surface. Roll it out to a uniform ¼-inch thickness.
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Gently press the dough into individual tartlet molds or a muffin tin. Re-roll any scraps and continue cutting until all the dough is used. Place the prepared crusts in the refrigerator to chill while you make the filling.
2. Make the Filling & Bake:
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Place the diced potatoes in a pot of salted water. Bring to a boil and cook for 12-15 minutes, or until very fork-tender. Drain thoroughly.
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Return the hot potatoes to the pot. Add the 2 tablespoons of milk and mash until completely smooth. Let the mashed potatoes cool for about 10 minutes.
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Preheat your oven to 350°F (175°C).
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In a large mixing bowl, combine the slightly cooled potatoes with the softened butter, sugar, eggs, ground almonds, and almond and vanilla extracts. Mix until the filling is smooth and well-combined.
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Remove the tart shells from the refrigerator. Spoon the filling into the shells (a piping bag or a zip-top bag with a corner snipped off works well for a neater job).
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Bake for 20-25 minutes, or until the edges of the crust are golden brown and the filling is set.
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Allow the tarts to cool completely in their pans on a wire rack before removing or glazing.
3. Glaze the Tarts:
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Once the tarts are completely cool, prepare the glaze. In a small bowl, whisk together the sifted powdered sugar, 2 tablespoons of milk, and the almond extract.
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Add more milk, a teaspoon at a time, until you reach a thick but drizzle-able consistency. If it becomes too thin, add a bit more powdered sugar.
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Drizzle the glaze over the tarts. Allow the glaze to set for at least 20 minutes before serving.
Notes:
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Storage: These tarts are best enjoyed the same day. However, leftovers can be stored in an airtight container in the refrigerator for up to 2 days. The crust will soften over time.
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Potato Tip: Using starchy yellow potatoes like Yukon Gold will yield the smoothest, creamiest filling. Ensure they are mashed until completely lump-free for the best texture.