Ingredients

• all-purpose flour - 2 cups
• unsalted butter - 1 cup
• brown sugar - 1 cup
• granulated sugar - ½ cup
• vanilla extract - 2 teaspoons
• egg - 1
• chocolate chips - 1 cup
• salt - ½ teaspoon
• tart shell - 1 (9-inch)

Instructions

1. 1.

   Preheat the oven to 350°F (175°C).

2. 2.

   In a mixing bowl, cream together the butter, brown sugar, and granulated sugar until smooth.

3. 3.

   Add the egg and vanilla extract, mixing until well combined.

4. 4.

   Gradually add the flour and salt, mixing until a dough forms.

5. 5.

   Fold in the chocolate chips until evenly distributed.

6. 6.

   Press the cookie dough mixture into the bottom and up the sides of the tart shell.

7. 7.

   Bake in the preheated oven for 25-30 minutes or until golden brown.

8. 8.

   Allow to cool completely before slicing and serving.