In a small bowl, mix the cream cheese, sugar, heavy cream and vanilla extract together until smooth. Set aside 1 tablespoon of mini chocolate chips. Stir the remaining mini chocolate chips into the cream cheese mixture. Set aside in the refrigerator while you make the cookie dough.

Melt the chopped chocolate and butter together in a large bowl set over a pan of barely simmering water, making sure the water doesn't touch the bottom of the bowl. Stir gently until smooth. Set aside to cool slightly. (Alternately, you can melt the chocolate in the microwave with short bursts.)

In a medium bowl, whisk together the flour, cocoa powder, baking powder and salt until well blended.

In a large bowl, whisk together the sugar, brown sugar, eggs and vanilla until smooth. Stir in the melted chocolate. Stir in the flour mixture just until combined. Stir in the mini chocolate chips.

Refrigerate the cookie dough for 10-15 minutes to make it easier to work with. Preheat the oven to 350ºF (180ºC). Line 2 large cookie sheets with parchment paper.

Roll 2-tablespoon (40g) size portions of cookie dough into balls. Place them onto the cookie sheet, about 3 inches apart. Press a 1-inch wide indentation into each cookie dough ball using a pastry tamper, the flat top of a bottle cap or with your thumbs. Spoon a generous 1 teaspoon of filling into each indentation. Sprinkle with the reserved mini chocolate chips.

Bake until the edges are set and beginning to crack, about 9-11 minutes. Cool the cookies on the cookie sheet for 1-2 minutes, then transfer them to a cooling rack.