Preheat the oven to 180°C/160°C(fan)/350°F/Gas 4. Line a 8x6 pan with parchment paper.
Melt 35 g Dark chocolate with 2 tablespoon Coconut oil and set aside.
In a large mixing bowl, mix together 50 g Oat flour, 20 g Cacao powder, 1 pinch Sea salt, 120 g Granulated stevia and 0.5 teaspoon Baking powder.
In a separate bowl, mix together 180 g 0% Fat Free Greek yogurt, 1 Egg, 60 ml Skim milk and 1 teaspoon Vanilla extract. Add the chocolate and coconut oil mixture and combine.
Fold the wet ingredients into the dry and then fold in 35 g Dark chocolate.
Pour the brownie batter into the lined pan and sprinkle a few more bits of chocolate on top.
Put into the oven for 30-35 minutes. The time will depend on your oven, and the pan used. When a knife or toothpick comes out mostly clean, it is done.
Allow to cool before cutting.
Notes
Make sure you let the melted chocolate mixture sit for 2 minutes before folding it into everything, because you don't want the yogurt to curdle.
Your chocolate brownies with yogurt will still look a little wobbly/jiggly when they come out of the oven (but shouldn't be really wobbly), as they will still continue cooking as they cool down. You don't want to over-cook these.
Every oven cooks differently, so start checking on these at 25 minutes. They could also take up to 40 minutes.
You can use brown sugar in this recipe if you want a more caramlized flavor.