Crispy Oat Tartlets with Citrus Cream and Fresh Fruit

<strong>Prepare the tartlet dough:</strong> In the food processor, combine the oats, almond flour, brown sugar, and salt. Process until a coarse and homogeneous crumb forms. Add the cold butter in cubes and pulse until the mixture looks like moist crumbs.

Add the egg yolk and pulse again, just until the dough begins to come together. Do not overprocess to avoid the dough developing excessive gluten. Remove the dough from the processor and join it with your hands, forming a disk. Wrap in plastic wrap and refrigerate for 30 minutes.

Preheat the oven to 180°C (350°F). With the dough chilled, divide it into 6 equal portions. Press each portion evenly into the bottom and sides of tartlet pans (about 10-12 cm in diameter), preferably with a removable bottom. Prick the bottom with a fork to prevent it from puffing up.

Bake the crusts for 15-20 minutes, or until the edges are lightly golden. If the dough inflates during cooking, press gently with the back of a spoon. Remove from the oven and let cool completely on a wire rack. This step ensures crispiness.

<strong>Prepare the lemon cream:</strong> In a heatproof bowl, mix the yolks, sugar, lemon juice, and zest. Place the bowl over a pan of simmering water (bain-marie), making sure the bottom of the bowl does not touch the water. The professional technique is crucial here.

Cook over medium-low heat, stirring constantly with a wire whisk, for 8-10 minutes, or until the cream thickens and coats the back of a spoon. Do not let the mixture boil to prevent it from curdling and compromising the texture.

Remove the bowl from the double boiler. Add the cold cubed butter, one at a time, stirring vigorously until completely incorporated and the cream is smooth and glossy. Strain the lemon curd through a fine-mesh sieve into another bowl to remove the zest and ensure a silky texture.

Cover the cream with plastic wrap, pressing it directly onto the surface to prevent the formation of an undesirable 'skin'. Take to the refrigerator for at least 2 hours, or until completely firm. Chilling is essential for the consistency.

<strong>Assemble the tartlets:</strong> Carefully unmold the already cold oat bases. Fill each base with the already cold and firm lemon cream, using a spatula or spoon to spread evenly.

Decorate generously with the chosen fresh red fruits. Add the toasted sliced almonds, if desired, and some mint leaves to finish with a touch of freshness. Serve immediately to enjoy the maximum crispiness of the base.