Peel the sweet potatoes, chop them and steam or boil them until soft (about 25 minutes).
Preheat the oven to 355ºF or 180ºC.
When the sweet potatoes are cold, place the almonds in a food processor and blend them to make almond flour.
Add the oats and blend again.
Add the rest of the ingredients and blend one more time.
Place the batter into a baking dish and bake for 25 or 30 minutes. We recommend you to put parchment paper onto the baking dish. Baking time may vary depending on the oven you're using.
Let the brownies cool for at least 10 minutes and cut them into squares.