First off let me apologise for the sheer amount of teasing I did with this recipe, over on Instagram I have been telling you this recipe was on its way, far too many times. The simple reason being that whilst it fudgy, rich and delicious after the first test I wanted to make sure the texture was spot on each and every time it was baked. I wanted to get the texture perfect, the right amount of spread, the fudgy inside and the shiny glossy top. Turns out this cookie, being made of a small handful of ingredients and very limited flour, is very susceptiple to changes depending on the temperature of the batter. Let the chocolate and butter cool down too much and the cookies spread way too much, use it while too hot and the cookies loose that beatiful glossy finish and dont spread enough. After many, many tests, every single one a terrible chocolate filled chore, I finally nailed the recipe. I really wanted to make a intensely chocolate flavoured cookie that had a texture that reminded you of that perfect fudge brownie. What I was trying to avoid however was a recipe that needed a prolonged chilling stage, in fact I wanted to avoid chilling completely if possible, I need my cookie fix way quicker than that! And that isnt to say a cookie like this that is chilled cant be fabulous, this recipe itself is based off my rye chocolate cookies from Olive Magazine which are chilled for 4 hours before baking and they are fabulous. After a lot of tinkering I am finally happy with the cookie and I cannot wait to see you guys making it, and with Easter weekend coming up fast this would be the perfect thing to make.

Note
Just a quick note on ingredients before I get to the recipe. For this cookie, with so few ingredients, it is really important to use good quality products. For the chocolate stick to something that a) you love the taste of and b) is around the 70% cocoa content mark. This isn't about the notion that 70% cocoa is an indicator of quality, it really isn't, it's more so that it tells you more about what the chocolate is made up of. If you use a 45% chocolate, for example, that's a lot more sugar and will change the texture of the cookies, and trust me these cookies, whilst incredibly simple to make, don't like being messed around with that much. The second important ingredient to choose carefully is the cocoa powder. I used the dutched cocoa rouge from Guittard because it has a deep rich flavour and colour. If you use a natural cocoa instead it wont lend the same colour or intensity of flavour. Now I know a lot of you are know saying, 'what on earth is dutched cocoa' and simply put, it is cocoa powder that has been treated with an alkali that darkens the colour and makes for a richer cocoa. If you are in the UK, or really anywhere in Europe thankfully this is generally what is available, but if you are in the US look for a cooca that mentions that mentions an alkali or calls itself dutched cocoa. Just avoid anything labeled natural, it wont be as good in this recipe. If the cocoa really doesnt give any indicator of wheter it is dutched or not look at the colour, generally speaking dutched cocoa has a deeper darker brown colour, less bright and red than natural cocoa. If you want more info about this, check out this great piece on Serious Eats

Brownie Crinkle Cookies
Makes 10

200g dark chocolate (around 65-70% cocoa solids), finely chopped
125g unsalted butter, diced
150g caster sugar
100g light brown sugar
2 large eggs
130g plain flour
3 tbsp cocoa powder (dutch processed)
1 tsp baking powder
1/4 tsp salt (plus flaked sea salt for sprinkling)

Temperature and timing is very important with this recipe so before you start get all the ingredients weighed out, two baking trays lined with parchment paper and the oven preheated to 180C (160C fan) 350F.

Place the butter and chocolate into a heatproof bowl and set over a pan and gently simmering water. Allow to melt, stirring occasionally until fully melted. Remove the bowl from the heat and set aside for the moment. In the bowl of a stand mixer fitted with the whisk attachment, or using an electric hand mixer, whisk together the eggs and sugars, on medium-high speed, for exactly 5 minutes. Once the eggs have been mixing for exactly 5 minutes pour in the chocolate mixture and mix for a minute or so to combine. Meanwhile mix together the dry ingredients, sieving the cocoa powder if it has lots of lumps. Add the dry ingredients and mix very briefly just until combined. Use your spatula to give one last mix, scraping the bottom of the bowl to make sure everything is evenly combined. Use a ice cream scoop to form the cookies. The batter will be a little on the wet side, so invert the cookie scoop just above the baking tray to avoid spills. Make sure to leave plenty of space between each cookie as they will spread. Sprinkle each cookie with a little flaked sea salt before placing into the oven and baking for 12 minutes. The cookies will come out of the oven with that wonderful crinkled look and slightly domed. They will collapse a little as they cool but this helps form that perfect fudgy centre. The cookies will be very soft so allow them to cool on the baking trays for at least 20-30 minutes before removing from the tray to cool completley. 

These cookies will keep for 4-5 days but will be best within the first 3 days.