I have the answer to why the cookies can be flat. You need to make the ball very small. I'd say half the size they suggest. This yields the correct size thumbprint cookie, and they are nice and full, not flat at all. If you roll the ball too large, they start to get flat. Keep them nice and small, and no problems! Enjoy they are yummy. I used toasted walnuts instead of the hazelnuts.

These are the best thumbprint cookies ever! Just a couple of tips - fill the cookies with the jam after the first 10 minutes of baking after you make the indentation with back of wooden spoon. Baking the jam results in a better taste & easier to store. I also make batches of these cookies & freeze to give as Christmas gifts packaged in cello bags.

How long can you store? If I bake this week may I store to Xmas?

I just got done baking a batch. I cut the recipe in half because my mixer is broken so a little dough would be easier to mix by hand. I didn't have hazelnuts at home so I omitted that step. I also added a pinch of baking soda because was afraid they would be flat since I mixed them by hand. I got fifteen 2" (once they came out) perfect cookies and filled them with strawberry jam. These were crispy and buttery and amazing. GREAT RECIPE! Will be making them again!

great cookie! highly recommended! dont listen to the negative comments these were fantastic!!

Also, use FRESH flour and ingredients. Don't use year old flour!!!

maybe add a tsp of baking powder or baking soda so the cookies won't be flat.

Made these for the first time and they are wonderful. I was a little afraid they might not turn out after reading some of the comments, but they came out just like the recipe said. Next time I am definitely using Nutella. These are going on the must have list for Christmas cookies.

Not good. These cookies ended up flat....I made one batch with hazelnut that tasted TERRIBLE. Almonds are much better but the dough does not hold the thum print, you will definetly get flat cookies.

I was dissappointed in this recipe. I followed the recipe and ended up with flat cookies. While they are soft and tasty they are far from Thumbprints. It is possible that the difference in my elevation. I live in a high elevation which can create problems. I dipped half the cookie in white chocolate they are very tasty just not the nice little round balls filled with jam I was looking for.

I like the idea of these but the recipe has issues. First, as another reviewer pointed out, the dough is the consistency of crumbs (would've been helpful to point that out; I thought I did something wrong.) I was still able to roll it into balls after it was refrigerated. The 1/2 cup of hazelnuts called for was way more than I was able to use. I used raspberry preserves and apricot jam - neither of which tasted quite right. I think a Hershey's kiss or Nutella would work better.

I do a lot of cookie baking and these were not one of my favorite. When mixed all ingredients, dough was like crumbs. The egg yolk wasn't enough. Dough was dry after 2 hrs in refrig. and very difficult to roll into balls. I wouldn't try this recipe again.

My mom has been baking these for at least the past 2 or 3 years as one of her Christmas cookie recipes and she stores these and all her cookies in closed tins or plastic storage containers between wax paper and they have always lasted through the advent season and beyond.They never get rancid or spoil in any way. I will say that she does keep the closed containers out on a three season porch or even in the basement where it is cooler but certainly not as cold as a refrigerater.

Cathie - I've made these with Hershey's kisses. The recipe I used called for baking them for 8 min. then taking them out and pressing the kisses into the indentation and baking for another 5-7 min. The kisses keep their shape, but soften up.

The cookies keep well for 2-3 weeks in an container with wax paper between the layers in the freezer.

I will try for the 3rd time to finish my comment:
Filling the cookies before baking them makes the jam thicker

i bake them 2 weeks before christmas and they are fine...i fill them after baking and let them dry overnight and put paper between layers to store them.

i bake them 2 weeks before christmas and they are fine...i fill them after baking and let them dry overnight and put paper between layers to store them.

i bake them 2 weeks before christmas and they are fine...i fill them after baking and let them dry overnight and put paper between layers to store them.

i bake them 2 weeks before christmas and they are fine...i fill them after baking and let them dry overnight and put paper between layers to store them.

comment continued....

I've been making these cookies for over 40 years, but I fill the the centers with jam before baking. The jam gets baked

These cookies sound delicious, but the part about them being able to be stored for 2 days?????? I was going to try making them for Christmas, but I don't want to start baking Dec. 23rd...Anyone make and keep them longer than this????

Four years ago, I baked for Christmas more than 160 cookies like this one for family and friends. Instead of hazelnut, I used pecans. It keeps well in the freezer. Wonderfull with a cup of coffee or tea. Try to eat only it one ! FUN FACT - When I was a child, my mother was used to make them too, back then we called it "precious cookies". My mother was used to say that these cookies were precious because pecans were expensive ... we are talking here more than 30 years ago.

I think instead of the hazelnuts that I might roll the cookies in coconut and maybe some pineapple jam in the thumbpring

I love the Nutella idea; does anyone have an idea to get the Nutella to harden a little so there is not a gooey puddle in the middle (making them more transportable/stackable)? Maybe mixing in some melted chocolate, which would harden as it cooled?

these sound so nice. Am goin 2 try them.

Wonder if you could add a Hersey Kiss in he middle instead of Jam? If it was done while they are still very hot. Maybe the chocolate would melt flat even wih the top of each thumbprint! I think I'll try.

Brendagj, your suggestion is BRILLIANT! Nutella with hazelnuts...omgosh is that rich

Instead of strawberry jam, try using Nutella instead, yummm