Preheat oven to 350°F with a rack in the center. Butter and flour a 10-inch bundt pan. Reserve.

In the jar of a blender, combine the carrots, eggs, sugar, oil, and salt. Blend until smooth.

Pour the mixture into a large bowl and gently stir in the flour and baking powder until no traces of flour remain.

Pour the batter into the prepared pan and bake for about 50 minutes or until a toothpick inserted in the middle comes out clean.

Remove the cake from the oven and let it cool for 10 minutes. Run a butter knife along the edges, tap the pan firmly a few times, and shake it gently to help loosen the cake. Invert the pan onto a cooling rack and let the cake continue to cool.

To make the brigadeiro, combine the chocolate, sweet condensed milk, and butter in a saucepan. Cook over medium-low heat, stirring constantly, until thickened and releasing from the bottom of the pan, about 10 minutes.

Add the heavy cream and stir until smooth. The brigadeiro should be thick but pourable.

Transfer the cake to a serving platter and pour the brigadeiro all over the cake. Decorate with chocolate sprinkles, if desired. Let it set for a few minutes before serving.