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Lemon Mascarpone Tarts

Lovely, lovely, patient people.  I have no idea where the time goes, sometimes.  I only believe that it’s been 3 weeks since I wrote to you in this space because when I checked the last post date it said September 14th.  And post dates don’t lie.  It’s all been so busy around here I completely lost track of time.  It wasn’t that I didn’t want to be here – I love hanging out with you; it’s just that I’ve been busy.  Busy with good stuff.  Stuff I think you’ll love.  Busy with a book, or two – for you.   There was my brain to consider as well, in all of it’s bright-shiny-object-syndrome glory.  Plus life with all it’s never-ending demands – a car that decided to overheat on the freeway one morning, a lawn that screamed to be mown twice a week, a checkbook to balance, clothes to repeatedly launder, trips to Trader Joe’s so I could make enough ice cream to fill a book; one of these days I’ll train the “kids” to load the dishwasher, or at least take the trash out.  Our lovely friend, Nancy, became The Roomie for 5 fun weeks, Mr. McHenry joined the gang and required extensive orientation (aka play time) and oh, I nearly forgot the day job.  But even so, I’ve been gone too long. Forgive me?

To make up for it in some small way, I made you something special – Lemon Mascarpone Tarts.  Yes there’s a story – because no one just randomly makes up fancy tartlets in their sleep.  There’s always a train of thought to these things, however disconnected it may seem to everyone else.

When I was working as the Head Pastry Chef at a French Patisserie in Perth – over in the great land of Oz – we used to make this tart that my team and I affectionately called Posh Pie.  It was a Pâte Sucrée (rich and buttery) pastry case filled with a mixture of mascarpone cheese and heavy (double) cream, topped with prunes that had been soaked in brandy, and then finished off with a beautiful glaze.  That was one epic pie, let me tell you.  I have often thought about Posh Pie since those days, but for reasons which are entirely unfathomable to me, I never made it again after I left Maison Perry.

I got around to thinking about Posh Pie a few weeks months back, and thought how fun it would be to make a keto version.  On reflection I decided that maybe prunes weren’t the best thing for you though, especially ones that had been soaked in brandy for 2 weeks.  And the whole mascarpone-heavy-cream thing didn’t seem quite right, either.  Ultimately, what I came up with is absolutely nothing like Posh Pie, but I thought I’d share where my mind started out.Lemon Mascarpone Tarts | Carrie Brown

I decided, the morning after I made these Lemon Shortbread Cookies, that they would make a perfectly fine substitute for a tart case.  Then, since my tartlet already had this whole lemony base going on, I couldn’t think of anything better to fill it with than some fantastically lemony Lemon Curd.  As a pretty piped topping I was going to go with simple whipped cream, but I determined that I should at least give a nod to the mascarpone part of the Posh Pie from my pastry-cheffing past.  A sprinkling of finely grated lemon zest and voila!  A spectacular tartlet that simply no one will believe is keto.  Except you and me.  It can be our little secret.

I wouldn’t recommend you eat these every day, or even every week.  I’d have them as a high-days-and-holidays treat – but it’s always good to have a truly memorable dessert recipe in your back pocket – for those times when you want to give the non-keto peeps at your table something super-special – without feeling like you have to compromise on your own eating choices.  I’ve given you this recipe ahead of the holidays so you can get prepared well in advance.  They are a little more complicated and time-consuming that most of my recipes.  Choosing a keto or low carb lifestyle doesn’t mean you can’t have fancy desserts, too.

Posh Pie it isn’t, but scrumptious keto it most certainly is!


  • You need to make the tartlet dough and the lemon curd at least one day before you want to serve them.  Once you have the tartlets baked and the Lemon Curd ready they are a cinch to put together.
  • I used fluted tartlet tins like these.  You can use any shape you’d like and they don’t have to be fluted, but fluted are prettier.  You can also get tartlet tins with removable bases that can make removal of the tartlets easier.
  • You’ll want a pastry bag like these – the larger the better, and some nozzles or tips like these.  You can also use them for whipped cream, piping marshmallows and meringues, and a bunch of other cool stuff that if I haven’t made it yet, I will.


Lemon Mascarpone Tarts

Author: Carrie Brown | Prep time:  15 mins   |   Total time:  15 mins  |  Serves: 12

What You Need

What You Do

  • Make a batch of Lemon Shortbread Cookie Dough following the recipe link above.
  • Once you have a soft dough, pull off pieces and press evenly into the base and up the sides of individual tartlet tins. I used 4 inch tins. Use a sharp knife to trim off any excess dough above the tins.
  • Prick the bases of the tarts with a fork to allow steam to escape while baking.
  • Place the tartlet tins onto a baking sheet and place in the center of the oven at 300F.
  • Bake for 20 – 25 minutes until they are golden brown.
  • Remove the baking sheet from the oven and allow the tarts to cool completely.
  • Once cold, carefully remove the tarts from the tins, using the tip of a knife to ease them out if necessary.
  • Store in an airtight container overnight.
  • Fill each tartlet with KETO Lemon Curd following the recipe link above, using a palette knife to give a smooth, even top the same height as the tarts.
  • In a bowl, whip the heavy cream until stiff.
  • In a separate bowl whip the mascarpone cheese just until it is soft. Do not overwhip!
  • Fold the whipped cream carefully into the mascarpone cheese until completely mixed.
  • Spoon the cheese cream into a piping bag fitted with a star nozzle and pipe stars around the edge of each tartlet.
  • Pipe a star in the center of each tartlet.
  • Sprinkle with very finely grated lemon zest.


Top Recipe Tips

  • You can make the tart cases and lemon curd several days ahead of time and assemble when you need them. Store the tart cases in an airtight container in a cool, dark place. Store the lemon curd in an airtight glass container in the fridge.
  • I used 4 inch fluted tart tins, but you can use other sizes – bear in mind this will get you more or less tarts than I did using the 4 inch ones.


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  • MayI’ve only just found SANE thanks to CreativeLive and am immersing myself in yours and Jonathan’s websites. Thank you so much for your amazing recipes that have me all excited about this new journey! I’ve loved watching you on CreativeLive and listening to the podcasts.
    Believe it or not, I was born in England (High Wycombe) and now live in Perth, Australia. I feel as if we’re best friends already! I’ve never lived in America though.
    Keep up the incredible work Carrie *hugs*ReplyCancel

    • carrieOh, May, High Wycombe!!! I know it well :-) THANK YOU so much for your kind words. Your support means the world!ReplyCancel

  • MayYou and I sound alike even though I’ve been in Australia for 42 years lol I’m also a photographer, and love my Nikon – your photos are really beautiful (food and landscapes!) Food is not an easy subject but you do really well.
    And on the bi-polar front, I really hope that is all settling into place for you now and that one day you’ll be able to come off the meds. Just never forget that the condition is *not your fault*. You’re beautiful, talented, fun and outgoing – all qualities to be proud of.
    And now I’m going on holiday to Tasmania for 10 days squeeeee!ReplyCancel

    • carrieThank you, May. I *really* appreciate your kind words. Have a fantastic holiday!ReplyCancel

  • RoseI rec’d your book yesterday and I just tasted my very first Vitamix-enabled soup, Tortilla Soup!

    Soups have been tough because they are often too high in carbs for me (diabetic) and these recipes do the trick. My first guilt-free Tortilla Soup (chicken not cabbage). Heaven. Thank you, Carrie.


    Now if I can get around to ordering the ice cream maker, I can get to work on the first book’s recipes…ReplyCancel

    • carrieHI Rose – thanks for the Tortilla Soup love. Makes my heart happy to read your comment!ReplyCancel

  • Lemon Shortbread Cookies » Carrie Brown | Living a SANE Life[…] devour one huge one, right?  I also used this same basic shortbread recipe as a tart crust for Lemon Mascarpone Tarts. Even though the base recipe I stole from the Vanilla Cranberry Shortbread that I gave you for […]ReplyCancel