Preheat the oven to 350 degrees Fahrenheit.
Add 1 1/2 cups chickpea flour and 2 teaspoons baking powder to a mixing bowl, then mix well. Be sure to spoon the chickpea flour into the measuring cups—don’t scoop.
Add 1/2 cup maple syrup, 1/2 cup creamy almond butter, 1/3 cup cocoa powder, 1 cup unsweetened milk of choice, 1 teaspoon vanilla extract, and 1/4 teaspoon salt to a second mixing bowl, then use a whisk to mix well.
Transfer the chickpea flour and baking powder mixture into the bowl with the other ingredients, then whisk to combine.
Transfer the batter to a 9-inch baking pan lined with parchment paper.
Bake for 28 minutes or until a toothpick inserted into the centre of the cake comes out looking clean.
Let the cake cool to room temperature before removing from the pan and serving.