⅓cupchopped chocolate or more chocolate chips for topping (optional)
Instructions
Preheat oven to 350 degrees F. Grease an 8-inch metal pan or line with foil and grease the foil. Or skip the foil and line with parchment paper.
Begin melting the butter in a small saucepan over medium heat. When it is about halfway melted, reduce heat to low and add the chocolate chips. Melt the chips, then stir in the cocoa powder and ⅓ cup of the sugar (the brown, if using two kinds). Remove from heat and stir until smooth.
In a mixing bowl, using a handheld electric mixer, beat together the eggs, the other ⅓ cup of sugar, salt and vanilla.
Stir the melted chocolate mixture into the egg mixture, then stir in the tapioca flour.
Spread batter in pan and bake for 25-27 minutes or until top appears set. Note: If you want to put chocolate chips on top, you can do that too.
Let cool at room temperature for several hours or let cool slightly at room temperature and finish cooling in the refrigerator.