Preheat the oven to 350°F (175°C). In a mixing bowl, combine graham cracker crumbs, sugar, and melted butter. Mix well.

Press the mixture into the bottom of a muffin tin to form the crust.

In another bowl, beat the cream cheese until smooth. Add sugar and vanilla extract, mixing until combined.

Add eggs one at a time, mixing well after each addition. Stir in melted chocolate chips.

Pour the filling over the crust in the muffin tin. Bake for 20-25 minutes or until set.

Allow to cool before removing from the tin.