Creating Peach & Cream Cheese Mini Tarts can be straightforward if you follow these simple steps:

1. Preheat the Oven: Preheat your oven to 350°F (175°C).
2. Make the Tart Crust: In a mixing bowl, combine the flour, softened butter, and granulated sugar. Mix until crumbly.
3. Add Egg Yolk: Stir in the egg yolk and mix until combined. If the mixture is dry, add cold water, one tablespoon at a time, until a dough forms.
4. Chill the Dough: Wrap the dough in plastic wrap and refrigerate for about 15 minutes.
5. Roll Out the Dough: On a lightly floured surface, roll out the dough to about ¼ inch thick.
6. Cut and Shape: Cut out circles using a cookie cutter or a glass. Press the circles into a mini muffin tin to form the tart shells.
7. Bake the Crusts: Bake the crusts in the preheated oven for 15-20 minutes or until lightly golden. Let them cool in the tin for a few minutes, then transfer to a wire rack to cool completely.
8. Prepare the Filling: In a bowl, beat the softened cream cheese, powdered sugar, and vanilla extract until smooth and creamy.
9. Fill the Tart Shells: Once the crusts are completely cool, fill each shell with the cream cheese mixture.
10. Top with Peaches: In a separate bowl, toss the peach slices with lemon juice to prevent browning. Arrange the peach slices on top of the cream cheese filling.
11. Chill: Place the mini tarts in the refrigerator for about 10-15 minutes to set.
12. Garnish: Before serving, garnish with fresh mint leaves for an added touch of color and flavor.

These steps will guide you in creating these incredible mini tarts effortlessly.