- 1 (17.3 ounce) package frozen puff pastry, thawed
- 3/4 cup apricot preserves, divided
- 2 peaches – peeled, pitted, and thinly sliced, or more as needed
- 2 teaspoons hot water, or as needed
- Preheat oven to 400 degrees F (200 degrees C). Line 2 baking sheets with parchment paper.
- Cut each sheet of puff pastry into nine 3-inch squares. Dab a small amount of apricot preserves into the center of each square. Fan 3 slices of peach over the preserves, leaving a slim border of pastry exposed. Spoon a small amount of apricot preserves over the peach slices.
- Bake in the preheated oven, 1 baking sheet at a time, until puff pastry turns golden, about 10 minutes.
- Thin remaining apricot preserves with 2 teaspoons hot water in a small bowl to make a glaze.
- Spoon some of the glaze over each baked tartlet. Return to the oven and bake until tartlets are golden brown, about 2 minute more. Repeat with second baking sheet. Cool tartlets on a wire rack before serving, about 10 minutes.