Prepare the Cookies: Cream together the butter and sugar until pale and fluffy. Scrape down the bowl, add the egg and continue beating until the egg is incorporated and the mixture lightens in color. Add the cocoa powder and beat until there are no lumps. Finally, add the flour and salt on low speed until incorporated. The dough will be very soft. Turn the dough onto a piece of parchment paper on a work surface, top with another piece of parchment paper, and roll out into a large rectangle about ¼-inch thick. Put the dough on a tray and place in the freezer for 30 minutes.
Preheat the oven to 350°F (180°C) with a rack in the center position and line two sheet pans with parchment paper.
Take the dough out of the freezer and slice it into 28 small (1¼ x 2½ inch) rectangles. Seperate the rectangles and spread them out on the lined baking trays. Bake for 10 minutes, then transfer to a wire rack to cool completely.
Make the Filling: Cream the butter until soft, sift in the remaining ingredients and beat until well combined. Spread a heaped teaspoon of filling onto half of the cookies, on the bottom side. Top with the remaining cookies, then place in the refrigerator to chill while you prepare the coating.
Prepare the Coating: Place the chocolate and coconut oil in a heat-proof bowl and melt together in the microwave on High (100%) in 30-second bursts, stirring well after each burst. Once the chocolate is mostly melted, remove and stir gently until smooth.
Take a chilled cookie and carefully coat it in the chocolate – this is easiest if you use your hands – then put it on a lined baking tray. Chill in the refrigerator completely before enjoying.
Nutitrion
Serving Size: 1 serving
Calories: 290 kcal
Carbohydrates: 57 g
Protein: 4 g
Fat: 7 g
Saturated Fat: 4 g
Trans Fat: 1 g
Cholesterol: 12 mg
Sodium: 9 mg
Sugar: 37 g
Unsaturated Fat: 3 g
Reviews
Michael Kane on 2025-08-30 (5 stars): I live in the USA, never even heard of a Tim Tam until someone at work left a package. I loved them, googled it and found this recipe. Awesome! Crispy cookie, malt flavored filling, and the milk chocolate coating was great. I used good quality milk chocolate melting wafers. My Tim Tams looked and tasted quite similar to the retail product.
Cookie Queen on 2025-04-06 (4 stars): Never are a Tim Tam before. Person helping me said they are pretty close. Chocolate coating really never hardens so it makes a mess when eating…perhaps chocolate meltingly wafers would be better?
Nicola Neck-Morris on 2024-01-03 (5 stars): When i make these I leave the wrapped dough in the fridge overnight to let the flour do its thing. Dough is easier to roll out and i use a rectangle cookie cutter. After baking i leave them on the tray while i gently smooth them down with an offset spatulas to give them a nice flat surface. After 10mins i remove them to a wire tray to fully cool. I make a normal chocolate ganache as its not so sweet.
Blitzo on 2022-10-27 (5 stars): They look great! I made these for the whole family.
Rose on 2022-07-11 (5 stars): What do you mean' separate the rectangles' are we not cutting 28 individual biscuits?
Brooke Hacker on 2022-05-17 (5 stars): I tried the recipe and i love it !!!!!!
Lorraine on 2022-02-19 (5 stars): Could I batch bake that cookie dough and then freeze it, use it as I need it? Thanks
Courtney B on 2022-02-10 (3 stars): Made these tonight, and was so excited to try it since where I live they don't sell them anymore.
Let's just say, they are SUPER RICH. Holy batman, I had half of one, and thought I was going to have a sugar overload. I had a package of Tim Tams in front of me after I made them, and I noticed baking powder in their ingredients. However, there wasn't any baking powder in this recipe. I think that makes them more of a wafer, and less of a brownie. I even made 2 separate batches to try and test a few different things out, and we preferred the modified one.
I think it's a close recipe, but it definitely needs the cookies more lighter. They're just so rich, so I think we'll play around with adding baking powder to try and lighten them up. :)
Kate on 2021-09-09 (4 stars): These look amazing. I've done part one to make the biscuits but they are a bit softer than the harder crumbly tim tam biscuits. Still delicious, but not quite there with that crunch. Should I have cooked them a little more? Can I pop them back in now they have cooled or will that destroy them?
