The Milk and Cookies Tart
Chocolate Chip Cookie Crust w/ Vanilla Mascarpone Mousse
I suppose that you could just stick to a milk dunking routine for your chocolate chip cookies, but if you do, you’ll be ignoring Judy Rodgers’s motto: “Stop. Think. There must be a harder way.” I’ve come up with one: make a tart with a chocolate chip cookie crust.
I have to admit that I’ve never absolutely loved short dough tart crusts. Why let some fatty crispness get in the way of the intense flavors and varied textures of the filling? It always boggles my mind when dough recipes suggest baking off extra tart dough as little cookies for snacks. Where’s the joy in that?
But then it occurred to me that if a tart crust can be a cookie, then why can’t a cookie be a tart crust? Because, you see, I love cookies.
Cut-out cookies would be the obvious choice for this experiment — and I have plans to try them out in the future and have made graham cracker tart crusts before in the past — but Chocolate Chip Cookies are really my favorite. I wanted to see what I could do with them.
The challenge was to make what is usually a free-form, convex baked good become a molded, concave baked good, and I’ve found a CCC quirk that makes for a tart crust that works for me.
Make the dough from the recipe on the Nestle Toll House chocolate chip bag. Place a piece of cookie dough that’s a little smaller than a tennis ball into a greased, parchment-lined mini non-stick springform pan that’s 4.5″ in diameter and 1.5″ high. Press the dough to the edges of the pan so that it is even; be careful to keep the parchment flat and centered. Run your finger around the inside edge so that the dough is pressed against the side of the pan. It should be about 3/8″ thick (I dislike that measurement, too, but 1/4″ is too little and 1/2″ is too much; think of it as just a little bit thicker than a chocolate chip). Bake in a 350F oven until the edges are golden brown and the center is just set and light brown but still soft and a little puffy– about 13 minutes, rotating if necessary. The center might already be a little concave, and as it cools, it will become more concave — and it is baked all the way through. When warm, unmold; slide an offset spat underneath, if necessary.
In effect, the cookie dough is baked like a cake whose center you are encouraging to fall. I tried a few different methods until I hit upon this one…
- My attempt to bake it in flan rings resulted in cookie dough overflowing… everywhere. The dough needs high sides to contain it as it puffs.
- My attempt to mold the dough onto the outside of an upside mini pie pan and bake it resulted in a ragged-edged, brittle bowl that was quite large… and weird.
- My attempt to bake it in an ungreased pan resulted in a flat cookie. This seemed counter-intuitive, but maybe the dough gets stuck on the ungreased sides while the greased sides allow it to move around a bit more, even if it keeps its high sides by the end. And oddly enough, it doesn’t really matter whether you press the dough into a concave shape or not before you bake it. Either way, the center falls and the edge rises a bit higher. I used a Canola spray.
- The parchment is important for a flat bottom after unmolding; without it, bits of cookie tend to stick to the bottom of the pan and the bottom of the crust gets ragged and trails melted chocolate.
The crust won’t be as thin as a short dough crust, but that’s desirable since it’s the star of the tart. Don’t overbake or else the middle will set flat. You could probably still mound a filling on top, but the cookie will cool hard and it’ll be hard to eat.
The filling was the next challenge. A chocolate mousse would be easy and delicious, but I wanted a filling that would complement it like milk. Whipped cream would be okay, but rather light, and while I didn’t want a rich mousse, I wanted something with a good body and a milky flavor tinged with vanilla. The issue with vanilla mousse is that it needs something to give it the body that the vanilla bean alone can’t give… and I didn’t want to make it excessively egg-y; fruit and chocolate mousses generally don’t have this problem.
So, I used this Vanilla Mascarpone Mousse. The flavors of milk and vanilla come right away, and it finishes with a mascarpone flavor. To purists, it may be hard to accept, but it’s an interesting twist. And the body is just right — not to light or too heavy…
You’ll notice that the tart in this pic has a smooth top while the first pic had a textured top. The first pic was a tart filled with mousse that had chilled overnight in a bowl, and this pic was a tart filled with mousse the night it was made. I think it’s best to make the mousse, chill it in a bowl to set, and then scoop/smooth it into the cookie shell when you’re ready to eat it. Otherwise — if you chill the mousse in a cookie shell — the cookie chills, and that’s not as good as a room temp cookie. Ideally, you’d eat it the day the mousse is made, but you can make the cookie crust days in advance.And I tried adjusting the mousse recipe to diminish the mascarpone flavor by switching to the following quantities in the recipe: 1/4 c mascarpone, 2 egg whites, and 1/2 c sugar. The result was a bit thinner and sweeter. The mascarpone flavor was diminished, but it was replaced by a cloying meringue flavor that made me miss the mascarpone. I may keep trying different versions of the mousse and other fillings, but the original is best so far.
As a culinary school graduate, I found myself worrying about the garnish to put on top. Lines or drops of melted chocolate would work. Or an arrangement of cocoa nibs. Or a candied walnut half. Or a cluster of roasted, chopped walnuts.
But part of me likes the clean look of the circular white mousse in the middle of the tart — like a glass of milk seen from above and accompanied by a chocolate chip cookie. And the specks of vanilla seeds add their own mini-garnish intrigue.

